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=== Description ===
----

'''Ultibo BCM2711 Interface unit'''

This unit provides the BCM2711 specific implementations of the following devices:

*SPI0
*SPI1
*SPI2
*SPI3
*SPI4
*SPI5
*SPI6
*I2C0
*I2C1
*I2C2
*I2C3
*I2C4
*I2C5
*I2C6
*I2C7
*I2C Slave
*SPI Slave
*DMA
*PWM0
*PWM1
*PCM
*GPIO
*UART0
*UART1
*UART2
*UART3
*UART4
*UART5
*EMMC0
*EMMC1
*EMMC2
 
*Clock (System Timer)
*Clock (ARM Timer)
*Clock (Local Timer)
*ARM Timer
*Local Timer
*Random
*Mailbox
*Watchdog
*Framebuffer
  
'''BCM2711 SPI0/3/4/5/6 Device'''

The BCM2711 has 5 master mode SPI controllers that support 3 wire, 2 wire and LoSSI modes of operation. It also has 2 auxiliary SPI masters which do not support DMA mode (see SPI1/2 below).
 
The main SPI0/3/4/5/6 controllers support polled, interrupt and DMA modes and include 3 chip selects although only CS0 and CS1 are available on the 40 pin header. 
 
The GPIO pins and functions for each device are shown below, not all of these combinations are accessible via the 40 pin header.

          Device     Line      Pin          Function             Notes
           SPI0      CS1       GPIO_PIN_7   GPIO_FUNCTION_ALT0  
                     CS0       GPIO_PIN_8   GPIO_FUNCTION_ALT0  
                     MISO      GPIO_PIN_9   GPIO_FUNCTION_ALT0
                     MOSI      GPIO_PIN_10  GPIO_FUNCTION_ALT0
                     SCLK      GPIO_PIN_11  GPIO_FUNCTION_ALT0
                                   
                     CS1       GPIO_PIN_35  GPIO_FUNCTION_ALT0   CM4 only
                     CS0       GPIO_PIN_36  GPIO_FUNCTION_ALT0
                     MISO      GPIO_PIN_37  GPIO_FUNCTION_ALT0
                     MOSI      GPIO_PIN_38  GPIO_FUNCTION_ALT0
                     SCLK      GPIO_PIN_39  GPIO_FUNCTION_ALT0
                                   
           SPI3      CS1       GPIO_PIN_24  GPIO_FUNCTION_ALT5
                     CS0       GPIO_PIN_0   GPIO_FUNCTION_ALT3
                     MISO      GPIO_PIN_1   GPIO_FUNCTION_ALT3
                     MOSI      GPIO_PIN_2   GPIO_FUNCTION_ALT3
                     SCLK      GPIO_PIN_3   GPIO_FUNCTION_ALT3
                                   
           SPI4      CS1       GPIO_PIN_25  GPIO_FUNCTION_ALT5
                     CS0       GPIO_PIN_4   GPIO_FUNCTION_ALT3
                     MISO      GPIO_PIN_5   GPIO_FUNCTION_ALT3
                     MOSI      GPIO_PIN_6   GPIO_FUNCTION_ALT3
                     SCLK      GPIO_PIN_7   GPIO_FUNCTION_ALT3
                                   
           SPI5      CS1       GPIO_PIN_26  GPIO_FUNCTION_ALT5
                     CS0       GPIO_PIN_12  GPIO_FUNCTION_ALT3
                     MISO      GPIO_PIN_13  GPIO_FUNCTION_ALT3
                     MOSI      GPIO_PIN_14  GPIO_FUNCTION_ALT3
                     SCLK      GPIO_PIN_15  GPIO_FUNCTION_ALT3
                                   
           SPI6      CS1       GPIO_PIN_27  GPIO_FUNCTION_ALT5
                     CS0       GPIO_PIN_18  GPIO_FUNCTION_ALT3
                     MISO      GPIO_PIN_19  GPIO_FUNCTION_ALT3
                     MOSI      GPIO_PIN_20  GPIO_FUNCTION_ALT3
                     SCLK      GPIO_PIN_21  GPIO_FUNCTION_ALT3
			
'''BCM2711 I2C0/1/2/3/4/5/6/7 Device'''

The BCM2711 has 8 Broadcom Serial Controller (BSC) devices which are fast mode (400Kz) I2C masters numbered BSC0 to BSC7 (I2C0 to I2C7).
 
Devices BSC2 and BSC7 are dedicated to the HDMI interfaces but can be accessed by the ARM processor for controlling some HDMI functionality. All BSC devices contain a 16 byte FIFO, support 7 bit and 10 bit addressing and have software configurable clock timing.
 
The GPIO pins and functions for each device are shown below, not all of these combinations are accessible via the 40 pin header.
 
           Device     Line      Pin          Function             Notes
           I2C0       SDA0      GPIO_PIN_0   GPIO_FUNCTION_ALT0
                      SCL0      GPIO_PIN_1   GPIO_FUNCTION_ALT0
                      
                      SDA0      GPIO_PIN_28  GPIO_FUNCTION_ALT0
                      SCL0      GPIO_PIN_29  GPIO_FUNCTION_ALT0
                      
                      SDA0      GPIO_PIN_44  GPIO_FUNCTION_ALT1
                      SCL0      GPIO_PIN_45  GPIO_FUNCTION_ALT1
                      
           I2C1       SDA1      GPIO_PIN_2   GPIO_FUNCTION_ALT0
                      SCL1      GPIO_PIN_3   GPIO_FUNCTION_ALT0
                     
                      SDA1      GPIO_PIN_44  GPIO_FUNCTION_ALT2
                      SCL1      GPIO_PIN_45  GPIO_FUNCTION_ALT2
            
           I2C2       SDA2                                       Not Applicable
                      SCL2                                       Not Applicable
            
           I2C3       SDA3      GPIO_PIN_2   GPIO_FUNCTION_ALT5
                      SCL3      GPIO_PIN_3   GPIO_FUNCTION_ALT5
                                   
                      SDA3      GPIO_PIN_4   GPIO_FUNCTION_ALT5
                      SCL3      GPIO_PIN_5   GPIO_FUNCTION_ALT5
                                   
           I2C4       SDA4      GPIO_PIN_6   GPIO_FUNCTION_ALT5
                      SCL4      GPIO_PIN_7   GPIO_FUNCTION_ALT5
                                   
                      SDA4      GPIO_PIN_8   GPIO_FUNCTION_ALT5
                      SCL4      GPIO_PIN_9   GPIO_FUNCTION_ALT5
                      
           I2C5       SDA5      GPIO_PIN_10  GPIO_FUNCTION_ALT5
                      SCL5      GPIO_PIN_11  GPIO_FUNCTION_ALT5
                      
                      SDA5      GPIO_PIN_12  GPIO_FUNCTION_ALT5
                      SCL5      GPIO_PIN_13  GPIO_FUNCTION_ALT5
                      
           I2C6       SDA6      GPIO_PIN_0   GPIO_FUNCTION_ALT5
                      SCL6      GPIO_PIN_1   GPIO_FUNCTION_ALT5
                      
                      SDA6      GPIO_PIN_22  GPIO_FUNCTION_ALT5
                      SCL6      GPIO_PIN_23  GPIO_FUNCTION_ALT5
            
           I2C7       SDA7                                       Not Applicable
                      SCL7                                       Not Applicable
 
Note: On the Raspberry Pi 4B the ID EEPROM pins on the 40 pin header are actually connected to GPIO 0 and 1 (I2C0).
 
'''BCM2711 SPI1/2 Device'''

The SPI1/2 devices are part of the AUX device which also includes the UART1 device.
 
They are master SPI devices which are considered secondary low throughput interfaces as they have small FIFOs and no DMA support.
 
The GPIO pins and functions for each device are shown below, not all of these combinations are accessible via the 40 pin header.
 
           Device     Line      Pin          Function             Notes
           SPI1       CS2       GPIO_PIN_16  GPIO_FUNCTION_ALT4  
                      CS1       GPIO_PIN_17  GPIO_FUNCTION_ALT4  
                      CS0       GPIO_PIN_18  GPIO_FUNCTION_ALT4  
                      MISO      GPIO_PIN_19  GPIO_FUNCTION_ALT4
                      MOSI      GPIO_PIN_20  GPIO_FUNCTION_ALT4
                      SCLK      GPIO_PIN_21  GPIO_FUNCTION_ALT4
 
           SPI2       CS2       GPIO_PIN_45  GPIO_FUNCTION_ALT4   CM4 only
                      CS1       GPIO_PIN_44  GPIO_FUNCTION_ALT4
                      CS0       GPIO_PIN_43  GPIO_FUNCTION_ALT4
                      MISO      GPIO_PIN_40  GPIO_FUNCTION_ALT4
                      MOSI      GPIO_PIN_41  GPIO_FUNCTION_ALT4
                      SCLK      GPIO_PIN_42  GPIO_FUNCTION_ALT4
 
Note: The GPIO function assignments section of the BCM2711 ARM Peripherals document incorrectly lists SPI2 as SPI0.

'''BCM2711 SPI/I2C Slave Device'''

The slave device can be used as either an I2C or an SPI interface, the I2C slave supports 400KHz fast mode operation. Only 7 bit addressing is supported, DMA is not supported and neither is clock stretching.
 
Unlike earlier models where the SPI slave device was apparently faulty on the Raspberry Pi 4 it is reported to work.

The GPIO pins and functions for each device are shown below, not all of these combinations are accessible via the 40 pin header.
 
           Device     Line      Pin          Function             Notes
           SPI Slave  CS        GPIO_PIN_8   GPIO_FUNCTION_ALT3
                      MISO      GPIO_PIN_9   GPIO_FUNCTION_ALT3
                      MOSI      GPIO_PIN_10  GPIO_FUNCTION_ALT3
                      SCLK      GPIO_PIN_11  GPIO_FUNCTION_ALT3

           I2C Slave  SDA       GPIO_PIN_10  GPIO_FUNCTION_ALT3
                      SCL       GPIO_PIN_11  GPIO_FUNCTION_ALT3

Note: The BCM2711 ARM Peripherals document does not include documentation for the I2C/SPI slave.
 
'''BCM2711 DMA Device'''

The DMA controller has 16 channels in total although not all are available for software to use as some are already used by the GPU.
 
The firmware will pass the value dma.dmachans on the command line which will indicate which channels are available for our use.
 
Channels 0 to 6 are normal channels which support 2D stride and transfers up to 1GB per control block.
 
Channels 7 to 10 are Lite channels which do not support stride and only allow transfers up to 64KB per control block.
 
Channels 11 to 14 are 40 bit channels which allow access to memory and peripherals beyond the 1GB boundary and have higher performance because they directly access the full 35 bit address map and can perform write bursts (DMA channel 11 is used to access the PCIe interface).

Channel 15 is not mentioned in most documentation and is shown as not available in the mask passed in dma.dmachans
 
Channel 0 and 15 are Bulk channels which have an additional FIFO for faster transfers (8 beat burst per read).

'''BCM2711 PWM0/1 Device'''

The BCM2711 has two PWM controllers with 2 independent output bit streams with multiple algorithms for generating the output pulse. The PWM controllers support either a single data register (independent per channel) or a 16 x 32 FIFO which also supports DMA mode transmission.
 
On the Raspberry Pi 4B PWM1_0 and PWM1_1 are also connected via GPIO pins 40 and 41 to the audio circuit and allow playback of digital audio signals via the 4 pole line jack.

The GPIO pins and functions for each device are shown below, not all of these combinations are accessible via the 40 pin header.
 
           Device     Line      Pin          Function             Notes
           PWM0       PWM0_0    GPIO_PIN_12  GPIO_FUNCTION_ALT0 
                      PWM0_1    GPIO_PIN_13  GPIO_FUNCTION_ALT0 
                      PWM0_0    GPIO_PIN_18  GPIO_FUNCTION_ALT5 
                      PWM0_1    GPIO_PIN_19  GPIO_FUNCTION_ALT5 
            
                      PWM0_1    GPIO_PIN_45  GPIO_FUNCTION_ALT0
 
           PWM1       PWM1_0    GPIO_PIN_40  GPIO_FUNCTION_ALT0 
                      PWM1_1    GPIO_PIN_41  GPIO_FUNCTION_ALT0 

On the Raspberry Pi 4B pins 12, 13, 18 and 19 are exposed on the 40 pin header.

'''BCM2711 GPIO Device'''

The GPIO has 54 pins available each with multiple alternate functions. All pins can be configured as input or output and all can have pull up or down applied.
 
Not all pins are exposed on the 40 pin header of the Raspberry Pi, for details of which pins are available see:
 
Raspberry Pi 4B - https://www.raspberrypi.org/documentation/usage/gpio/README.md
 
Some of the 54 pins are used for peripheral communication (such as the SD card) and are not available for general use, take care when changing function selects on pins to avoid disabling certain system peripherals.
 
Event detection can be enabled for both high and low levels as well as rising and falling edges, there is also an asynchronous rising or falling edge detection which can detect edges of very short duration.

'''BCM2711 UART0/2/3/4/5 Device'''

The UART0/2/3/4/5 device is an ARM PL011 UART which supports programmable baud rates, start, stop and parity bits and hardware flow control and many others. The UART0 is similar to the industry standard 16C650 but with a number of differences, the PL011 has some optional features such as IrDA, Serial InfraRed and DMA which are not supported by the Broadcom implementation.

In the standard configuration the UART0 TX and RX lines are connected to GPIO pins 14 and 15 respectively (Alternate function 0) but they can be remapped via GPIO function selects to a number of other locations. On the Raspberry Pi 4B none of these alternate pin mappings are exposed via the 40 pin header and therefore cannot be used easily. This means that UART0 and UART1 cannot be used via the 40 pin header at the same time.

On the Raspberry Pi 4B the UART0 can be mapped to GPIO pins 32 and 33 (Alternate function 3) to communicate with the built in Bluetooth module.
 
The GPIO pins and functions for each device are shown below, not all of these combinations are accessible via the 40 pin header.
 
           Device     Line      Pin          Function             Notes
           UART0      TXD       GPIO_PIN_14  GPIO_FUNCTION_ALT0  
                      RXD       GPIO_PIN_15  GPIO_FUNCTION_ALT0  
                      CTS       GPIO_PIN_16  GPIO_FUNCTION_ALT3  
                      RTS       GPIO_PIN_17  GPIO_FUNCTION_ALT3  
                                  
                      TXD       GPIO_PIN_32  GPIO_FUNCTION_ALT3  
                      RXD       GPIO_PIN_33  GPIO_FUNCTION_ALT3  
                      CTS       GPIO_PIN_30  GPIO_FUNCTION_ALT3  
                      RTS       GPIO_PIN_31  GPIO_FUNCTION_ALT3  
                                   
                      TXD       GPIO_PIN_36  GPIO_FUNCTION_ALT2  
                      RXD       GPIO_PIN_37  GPIO_FUNCTION_ALT2  
                      CTS       GPIO_PIN_38  GPIO_FUNCTION_ALT2  
                      RTS       GPIO_PIN_39  GPIO_FUNCTION_ALT2  
                                   
           UART2      TXD       GPIO_PIN_0   GPIO_FUNCTION_ALT4  
                      RXD       GPIO_PIN_1   GPIO_FUNCTION_ALT4  
                      CTS       GPIO_PIN_2   GPIO_FUNCTION_ALT4  
                      RTS       GPIO_PIN_3   GPIO_FUNCTION_ALT4  
                                   
           UART3      TXD       GPIO_PIN_4   GPIO_FUNCTION_ALT4  
                      RXD       GPIO_PIN_5   GPIO_FUNCTION_ALT4  
                      CTS       GPIO_PIN_6   GPIO_FUNCTION_ALT4  
                      RTS       GPIO_PIN_7   GPIO_FUNCTION_ALT4  
                                   
           UART4      TXD       GPIO_PIN_8   GPIO_FUNCTION_ALT4  
                      RXD       GPIO_PIN_9   GPIO_FUNCTION_ALT4  
                      CTS       GPIO_PIN_10  GPIO_FUNCTION_ALT4  
                      RTS       GPIO_PIN_11  GPIO_FUNCTION_ALT4  
                                   
           UART5      TXD       GPIO_PIN_12  GPIO_FUNCTION_ALT4  
                      RXD       GPIO_PIN_13  GPIO_FUNCTION_ALT4  
                      CTS       GPIO_PIN_14  GPIO_FUNCTION_ALT4  
                      RTS       GPIO_PIN_15  GPIO_FUNCTION_ALT4  

'''BCM2711 UART1 Device'''

The UART1 device is a Broadcom implementation that is part of the AUX device which also includes the SPI1 and SPI2 devices.

This device is termed a Mini UART and has a smaller feature set than the PL011 UART but still supports a fairly standard communication protocol with programmable baud rate and hardware flow control.
 
The Mini UART is similar to the standard 16550 device but is missing some of the features, the device also has no DMA support so high speed transfers will produce a higher CPU load.

In the standard configuration the UART1 TX and RX lines are connected to GPIO pins 14 and 15 respectively (Alternate function 5) but they can be remapped via GPIO function selects to a number of other locations.

On the Raspberry Pi 4B none of these alternate pin mappings are exposed via the 40 pin header and therefore cannot be used easily. This means that UART0 and UART1 cannot be used via the 40 pin header at the same time.
 
On the Raspberry Pi 4B the UART1 can be mapped to GPIO pins 32 and 33 (Alternate function 5) to communicate with the built in Bluetooth module.

The GPIO pins and functions for the device are shown below, not all of these combinations are accessible via the 40 pin header.
 
           Device     Line      Pin          Function             Notes
           UART1      TXD       GPIO_PIN_14  GPIO_FUNCTION_ALT5  
                      RXD       GPIO_PIN_15  GPIO_FUNCTION_ALT5  
                      CTS       GPIO_PIN_16  GPIO_FUNCTION_ALT5  
                      RTS       GPIO_PIN_17  GPIO_FUNCTION_ALT5  
            
                      TXD       GPIO_PIN_32  GPIO_FUNCTION_ALT5  
                      RXD       GPIO_PIN_33  GPIO_FUNCTION_ALT5  
                      CTS       GPIO_PIN_30  GPIO_FUNCTION_ALT5  
                      RTS       GPIO_PIN_31  GPIO_FUNCTION_ALT5  

'''BCM2711 EMMC0 (SDHCI) Device'''

The SDHCI controller on the BCM2711 is an Arasan SD Host controller.

The Card Detect pin is not connected.

The Write Protect pin is not connected.
 
The device can be routed to GPIO pins 22 to 27 (ALT3) or 48 to 53 (ALT3), it can also be routed to GPIO pins 34 to 39 (ALT3) to provide an SDIO controller for the on board WiFi.
 
'''BCM2711 EMMC1 (SDHOST) Device'''

The SDHOST controller on the BCM2711 is a non SDHCI-compliant device which requires a specific driver. 
 
It can be routed to GPIO pins 22 to 27 (ALT0) or 48 to 53 (ALT0) however only 22 to 27 are accessible to use.
 
Note: The actual driver is implemented in the BCMSDHOST unit

'''BCM2711 EMMC2 (SDHCI) Device'''

The EMMC2 controller on the BCM2711 is an SDHCI-compliant device which does not appear on the GPIO pins and is internally connected to the SD card slot.
 
The BCM2838_GPPINMUX register allows routing the SDHCI controller (EMMC0) to the SD card slot which then renders the EMMC2 unusable.
 
'''BCM2711 Clock (System Timer) Device'''

The clock device in the BCM2711 is based on the System Timer which is a 64 bit free running counter that runs at 1MHz regardless of core or CPU clock speeds. The System Timer cannot be stopped and the counter cannot be set or reset.
 
The System Timer includes 4 compare registers which can each generate an interrupt when the compare value is matched, however 2 of the 4 are consumed by the GPU and on the Raspberry Pi A/B/A+/B+/Zero the other 2 are used for the scheduler and clock interrupts in Ultibo. 
 
This device simply exposes the free running counter as a clock value and does not provide access to the timer compare functionality or to interrupt based events, for those see the timer devices below.
 
'''BCM2711 Clock (ARM Timer) Device'''

This device represents that free running counter from the ARM Timer device (below) as a clock device. The free running counter does not appear in the original SP804 timer. The counter is 32 bits wide and has its own divider that is 8 bits wide meaning that it can be set to clock rates of between 975KHz and 250MHz (or 1.5MHz to 400MHz on the Raspberry Pi 3B).
 
The counter does not generate an interrupt and cannot be set or reset but it can be stopped and started.

'''BCM2711 ARM Timer Device'''

The ARM Timer device in the BCM2711 is based on the ARM SP804 timer with some modifications and additions. In the Raspberry Pi it is connected to the core clock which by default is 250MHz but was increased to 400MHz on the Raspberry Pi 3B.
 
The divider is 10 bits wide which means that the ARM Timer can be set to clock rates of between 250KHz and 250MHz (or 400KHz to 400MHz on the Raspberry Pi 3B). Both the counter and the load/reload value are 32 bits wide by default giving a wide range of tick intervals.
  
The ARM Timer features a free running counter which is not enabled or used by this driver and a down counter which operates in wrapping mode so that each time it reaches 0 it triggers an interrupt and reloads the value from a load or reload register to begin counting again.

=== Constants ===
----


<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;">
<div style="font-size: 14px; padding-left: 12px;">'''BCM2711 SPI0/3/4/5/6''' <code> BCM2711_SPI0_* </code></div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
| <code>BCM2711_SPI0_DESCRIPTION = 'BCM2838 Master SPI';</code>
| style="width: 50%;"|&nbsp;
|-
|colspan="2"|&nbsp;
|-
| <code>BCM2711_SPI0_MAX_SIZE = $FFFF;</code>
| &nbsp;
|-
|colspan="2"|&nbsp;
|-
| <code>BCM2711_SPI0_MIN_CLOCK = 7629;</code>
| Default minimum based on the default settings from the firmware (Recalculated during open)
|-
| <code>BCM2711_SPI0_MAX_CLOCK = 250000000;</code>
| Default maximum based on the default settings from the firmware (Recalculated during open)
|-
|colspan="2"|&nbsp;
|-
| <code>BCM2711_SPI0_MIN_DIVIDER = 2;</code>
| Divider is always rounded down to an even number and a value of 0 sets the divider to 65536
|-
| <code>BCM2711_SPI0_MAX_DIVIDER = $FFFE;</code>
| Divider is always rounded down to an even number
|-
|colspan="2"|&nbsp;
|-
| <code>BCM2711_SPI0_CORE_CLOCK = 500000000;</code>
| Default core clock based on the default settings from the firmware (Requested from firmware during start)
|-
|colspan="2"|&nbsp;
|-
| <code>BCM2711_SPI0_MODE_IRQ = 0;</code>
| &nbsp;
|-
| <code>BCM2711_SPI0_MODE_DMA = 1;</code>
| &nbsp;
|-
| <code>BCM2711_SPI0_MODE_PIO = 2;</code>
| &nbsp;
|-
|}
</div></div>
<br /> 
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;">
<div style="font-size: 14px; padding-left: 12px;">'''BCM2711 I2C0/1/2/3/4/5/6/7''' <code> BCM2711_I2C0_* </code></div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
| <code>BCM2711_I2C0_DESCRIPTION = 'BCM2838 Master I2C';</code>
| style="width: 50%;"|&nbsp;
|-
|colspan="2"|&nbsp;
|-
| <code>BCM2711_I2C0_MAX_SIZE = $FFFF;</code>
| &nbsp;
|-
|colspan="2"|&nbsp;
|-
| <code>BCM2711_I2C0_MIN_CLOCK = 7629;</code>
| Default minimum based on the default settings from the firmware (Recalculated during open)
|-
| <code>BCM2711_I2C0_MAX_CLOCK = 250000000;</code>
| Default maximum based on the default settings from the firmware (Recalculated during open)
|-
| <code>BCM2711_I2C0_DEFAULT_CLOCK = 100000;</code>
| &nbsp;
|-
|colspan="2"|&nbsp;
|-
| <code>BCM2711_I2C0_MIN_DIVIDER = 2;</code>
| Divider is always rounded down to an even number and a value of 0 sets the divider to 32768
|-
| <code>BCM2711_I2C0_MAX_DIVIDER = $FFFE;</code>
| Divider is always rounded down to an even number
|-
|colspan="2"|&nbsp;
|-
| <code>BCM2711_I2C0_CORE_CLOCK = 500000000;</code>
| Default core clock based on the default settings from the firmware (Requested from firmware during start)
|-
|colspan="2"|&nbsp;
|-
| <code>BCM2711_I2C0_MODE_WRITE = 0;</code>
| &nbsp;
|-
| <code>BCM2711_I2C0_MODE_READ = 1;</code>
| &nbsp;
|-
|}
</div></div>
<br /> 
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;">
<div style="font-size: 14px; padding-left: 12px;">'''BCM2711 SPI1/2 (AUX)''' <code> BCM2711_SPI*_* </code></div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
| <code>BCM2711_SPI1_DESCRIPTION = 'BCM2838 AUX Master SPI1';</code>
| style="width: 50%;"|&nbsp;
|-
| <code>BCM2711_SPI2_DESCRIPTION = 'BCM2838 AUX Master SPI2';</code>
| &nbsp;
|-
|}
</div></div>
<br /> 
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;">
<div style="font-size: 14px; padding-left: 12px;">'''BCM2711 SPI/I2C slave''' <code> BCM2711_*SLAVE_* </code></div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
| <code>BCM2711_I2CSLAVE_DESCRIPTION = 'BCM2838 I2C Slave';</code>
| style="width: 50%;"|&nbsp;
|-
| <code>BCM2711_SPISLAVE_DESCRIPTION = 'BCM2838 SPI Slave';</code>
| &nbsp;
|-
|colspan="2"|&nbsp;
|-
| <code>BCM2711_I2CSLAVE_TIMEOUT = 10;</code>
| Timeout (Milliseconds) for RX/TX wait data
|-
| <code>BCM2711_I2CSLAVE_BUFFER_SIZE = 1024;</code>
| Size in bytes of the RX/TX data buffer
|-
| <code>BCM2711_I2CSLAVE_RX_POLL_LIMIT = 256;</code>
| Number of times interrupt handler may poll the read FIFO
|-
|}
</div></div>
<br /> 
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;">
<div style="font-size: 14px; padding-left: 12px;">'''BCM2711 DMA''' <code> BCM2711_DMA_* </code></div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
| <code>BCM2711_DMA_DESCRIPTION = 'BCM2838 DMA';</code>
| style="width: 50%;"|&nbsp;
|-
|colspan="2"|&nbsp;
|-
| <code>BCM2711_DMA_CHANNEL_COUNT = 16;</code>
| Total number of DMA channels (Not all are usable)
|-
|colspan="2"|&nbsp;
|-
| <code>BCM2711_DMA_40_CHANNELS = $7800;</code>
| Mask of 40 bit channels (11 to 14)
|-
| <code>BCM2711_DMA_LITE_CHANNELS = $0780;</code>
| Mask of Lite channels (7 to 10)
|-
| <code>BCM2711_DMA_NORMAL_CHANNELS = $007E; {807F}</code>
| Mask of normal channels (1 to 6)
|-
| <code>BCM2711_DMA_BULK_CHANNELS = $8001;</code>
| Mask of Bulk channels (0 and 15)
|-
|colspan="2"|&nbsp;
|-
| <code>BCM2711_DMA_SHARED_CHANNELS = $0780;</code>
| Mask of channels with shared interrupt (7 to 10)
|-
|colspan="2"|&nbsp;
|-
| <code>BCM2711_DMA_MAX_40_TRANSFER = 1073741824;</code>
| Maximum transfer length for a 40 bit channel
|-
| <code>BCM2711_DMA_MAX_LITE_TRANSFER = 65536;</code>
| Maximum transfer length for a Lite channel
|-
| <code>BCM2711_DMA_MAX_NORMAL_TRANSFER = 1073741824;</code>
| Maximum transfer length for a normal channel
|-
|colspan="2"|&nbsp;
|-
| <code>BCM2711_DMA_MAX_STRIDE = $FFFF;</code>
| Maximum stride value (Increment between rows) Note this is a signed value (Min -32768 / Max 32767)
|-
| <code>BCM2711_DMA_MAX_Y_COUNT = $3FFF;</code>
| Maximum number of X length transfers in 2D stride
|-
| <code>BCM2711_DMA_MAX_X_LENGTH = $FFFF;</code>
| Maximum X transfer length in 2D stride
|-
|colspan="2"|&nbsp;
|-
| <code>BCM2711_DMA_CB_ALIGNMENT = 32;</code>
| Alignment required for DMA control blocks
|-
|colspan="2"|&nbsp;
|-
| <code>BCM2711_DMA_40_BURST_LENGTH = 16;</code>
| Burst length for 40 bit channels
|-
| <code>BCM2711_DMA_LITE_BURST_LENGTH = 2;</code>
| Burst length for DMA Lite channels
|-
| <code>BCM2711_DMA_NORMAL_BURST_LENGTH = 4;</code>
| Burst length for normal channels
|-
| <code>BCM2711_DMA_BULK_BURST_LENGTH = 16;</code>
| Burst length for DMA Bulk channels
|-
|colspan="2"|&nbsp;
|-
| <code>BCM2711_DMA_REQUIRE_40_ADDRESS = SIZE_1G;</code>
| DMA transfers to or from address above 1GB require a 40-bit channel
|-
|colspan="2"|&nbsp;
|-
| <code>BCM2711_DMA_40_PERIPHERAL_OFFSET = 4;</code>
| 40 bit DMA channels use the "Full 35-bit address map" and must access peripherals at 0x4:7C000000 - 0x4:7FFFFFFF
|-
| <code>BCM2711_DMA_40_PERIPHERAL_IO_BASE = BCM2838_EXT_PERIPHERALS_BASE;</code>
| &nbsp;
|-
| <code>BCM2711_DMA_40_PERIPHERAL_IO_ALIAS = $7C000000;</code>
| &nbsp;
|-
| <code>BCM2711_DMA_40_PERIPHERAL_IO_MASK = $03FFFFFF;</code>
| &nbsp;
|-
|}
</div></div>
<br /> 
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;">
<div style="font-size: 14px; padding-left: 12px;">'''BCM2711 PWM0/1 ''' <code> BCM2711_PWM0_* </code></div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
| <code>BCM2711_PWM0_DESCRIPTION = 'BCM2838 PWM';</code>
| style="width: 50%;"|&nbsp;
|-
|colspan="2"|&nbsp;
|-
| <code>BCM2711_PWM0_MIN_PERIOD = 38;</code>
| Default based on 54MHz PWM clock (Oscillator source)
|-
| <code>BCM2711_PWM0_DEFAULT_CLOCK = 54000000;</code>
| Default to the 54MHz oscillator clock
|-
|}
</div></div>
<br /> 
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;">
<div style="font-size: 14px; padding-left: 12px;">'''BCM2711 GPIO''' <code> BCM2711_GPIO_* </code></div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
| <code>BCM2711_GPIO_DESCRIPTION = 'BCM2838 GPIO';</code>
| style="width: 50%;"|&nbsp;
|-
|colspan="2"|&nbsp;
|-
| <code>BCM2711_GPIO_MIN_PIN = GPIO_PIN_0;</code>
| &nbsp;
|-
| <code>BCM2711_GPIO_MAX_PIN = GPIO_PIN_57;</code>
| &nbsp;
|-
|colspan="2"|&nbsp;
|-
| <code>BCM2711_GPIO_MAX_LEVEL = GPIO_LEVEL_HIGH;</code>
| &nbsp;
|-
|colspan="2"|&nbsp;
|-
| <code>BCM2711_GPIO_MAX_PULL = GPIO_PULL_DOWN;</code>
| &nbsp;
|-
|colspan="2"|&nbsp;
|-
| <code>BCM2711_GPIO_MIN_FUNCTION = GPIO_FUNCTION_IN;</code>
| &nbsp;
|-
| <code>BCM2711_GPIO_MAX_FUNCTION = GPIO_FUNCTION_ALT5;</code>
| &nbsp;
|-
|colspan="2"|&nbsp;
|-
| <code>BCM2711_GPIO_MIN_TRIGGER = GPIO_TRIGGER_LOW;</code>
| &nbsp;
|-
| <code>BCM2711_GPIO_MAX_TRIGGER = GPIO_TRIGGER_ASYNC_FALLING;</code>
| &nbsp;
|-
|colspan="2"|&nbsp;
|-
| <code>BCM2711_GPIO_PULL_MAP:array[GPIO_PULL_NONE..GPIO_PULL_DOWN] of LongWord = (BCM2838_GPPUD_NONE, BCM2838_GPPUD_UP, BCM2838_GPPUD_DOWN);</code>
| GPIO pull up/down to BCM2838 pull up/down
|-
|colspan="2"|&nbsp;
|-
| <code>BCM2711_GPIO_PULL_UNMAP:array[BCM2838_GPPUD_NONE..BCM2838_GPPUD_DOWN] of LongWord = (GPIO_PULL_NONE, GPIO_PULL_UP, GPIO_PULL_DOWN);</code>
| BCM2838 pull up/down to GPIO pull up/down
|-
|colspan="2"|GPIO functions to BCM2838 functions
|-
|colspan="2"|<code>BCM2711_GPIO_FUNCTION_MAP:array[BCM2711_GPIO_MIN_FUNCTION..BCM2711_GPIO_MAX_FUNCTION] of LongWord = (BCM2838_GPFSEL_IN, BCM2838_GPFSEL_OUT, BCM2838_GPFSEL_ALT0, BCM2838_GPFSEL_ALT1, BCM2838_GPFSEL_ALT2, BCM2838_GPFSEL_ALT3, BCM2838_GPFSEL_ALT4, BCM2838_GPFSEL_ALT5);</code>
|-
|colspan="2"|BCM2838 functions to GPIO functions
|-
|colspan="2"|<code>BCM2711_GPIO_FUNCTION_UNMAP:array[BCM2711_GPIO_MIN_FUNCTION..BCM2711_GPIO_MAX_FUNCTION] of LongWord = (GPIO_FUNCTION_IN, GPIO_FUNCTION_OUT, GPIO_FUNCTION_ALT5,  GPIO_FUNCTION_ALT4, GPIO_FUNCTION_ALT0, GPIO_FUNCTION_ALT1, GPIO_FUNCTION_ALT2, GPIO_FUNCTION_ALT3);</code>
|-
|colspan="2"|GPIO triggers to BCM2838 event registers
|-
|colspan="2"|<code>BCM2711_GPIO_TRIGGER_MAP:array[BCM2711_GPIO_MIN_TRIGGER..BCM2711_GPIO_MAX_TRIGGER] of LongWord = (BCM2838_GPLEN0, BCM2838_GPHEN0, BCM2838_GPREN0, BCM2838_GPFEN0, BCM2838_GPAREN0, BCM2838_GPAFEN0);</code>
|-
|}
</div></div>
<br /> 
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;">
<div style="font-size: 14px; padding-left: 12px;">'''BCM2711 UART0/2/3/4/5 (PL011)''' <code> BCM2711_UART0_* </code></div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
| <code>BCM2711_UART0_DESCRIPTION = 'BCM2838 PL011 UART';</code>
| style="width: 50%;"|&nbsp;
|-
|colspan="2"|&nbsp;
|-
| <code>BCM2711_UART0_MIN_BAUD = 300;</code>
| Default minimum of 300 baud
|-
| <code>BCM2711_UART0_MAX_BAUD = 187500;</code>
| Default maximum based on the default settings from the firmware (Recalculated during open)
|-
|colspan="2"|&nbsp;
|-
| <code>BCM2711_UART0_MIN_DATABITS = SERIAL_DATA_5BIT;</code>
| &nbsp;
|-
| <code>BCM2711_UART0_MAX_DATABITS = SERIAL_DATA_8BIT;</code>
| &nbsp;
|-
|colspan="2"|&nbsp;
|-
| <code>BCM2711_UART0_MIN_STOPBITS = SERIAL_STOP_1BIT;</code>
| &nbsp;
|-
| <code>BCM2711_UART0_MAX_STOPBITS = SERIAL_STOP_2BIT;</code>
| &nbsp;
|-
|colspan="2"|&nbsp;
|-
| <code>BCM2711_UART0_MAX_PARITY = SERIAL_PARITY_EVEN;</code>
| &nbsp;
|-
|colspan="2"|&nbsp;
|-
| <code>BCM2711_UART0_MAX_FLOW = SERIAL_FLOW_RTS_CTS;</code>
| &nbsp;
|-
|colspan="2"|&nbsp;
|-
| <code>BCM2711_UART0_CLOCK_RATE = 3000000;</code>
| Default clock rate based on the default settings from the firmware (Requested from firmware during open)
|-
| <code>BCM2711_UART0_RX_POLL_LIMIT = 256;</code>
| Number of times interrupt handler may poll the read FIFO
|-
| <code>BCM2711_UART0_RX_BUFFER_SIZE = 1024;</code>
| &nbsp;
|-
|}
</div></div>
<br /> 
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;">
<div style="font-size: 14px; padding-left: 12px;">'''BCM2711 UART1 (AUX)''' <code> BCM2711_UART1_* </code></div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
| <code>BCM2711_UART1_DESCRIPTION = 'BCM2838 AUX UART1';</code>
| style="width: 50%;"|&nbsp;
|-
|}
</div></div>
<br /> 
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;">
<div style="font-size: 14px; padding-left: 12px;">'''BCM2711 EMMC0 (SDHCI)''' <code> BCM2711_EMMC0_* </code></div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
| <code>BCM2711_EMMC0_DESCRIPTION = 'BCM2838 Arasan SD Host';</code>
| style="width: 50%;"|&nbsp;
|-
|colspan="2"|&nbsp;
|-
| <code>BCM2711_EMMC0_MIN_FREQ = 400000;</code>
| Default minimum of 400KHz
|-
| <code>BCM2711_EMMC0_MAX_FREQ = 250000000;</code>
| Default clock rate based on the default settings from the firmware (Requested from firmware during start)
|-
|}
</div></div>
<br /> 
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;">
<div style="font-size: 14px; padding-left: 12px;">'''BCM2711 EMMC1 (SDHOST)''' <code> BCM2711_EMMC1_* </code></div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
| <code>BCM2711_EMMC1_DESCRIPTION = 'BCM2838 SDHOST';</code>
| style="width: 50%;"|&nbsp;
|-
|colspan="2"|&nbsp;
|-
| <code>BCM2711_EMMC1_MIN_FREQ = 400000;</code>
| Default minimum of 400KHz
|-
| <code>BCM2711_EMMC1_MAX_FREQ = 200000000;</code>
| Default clock rate based on the default settings from the firmware (Requested from firmware during start)
|-
|colspan="2"|See: BCMSDHOST for the driver implementation
|-
|}
</div></div>
<br /> 
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;">
<div style="font-size: 14px; padding-left: 12px;">'''BCM2711 EMMC2 (SDHCI)''' <code> BCM2711_EMMC2_* </code></div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
| <code>BCM2711_EMMC2_DESCRIPTION = 'BCM2838 SDHCI';</code>
| style="width: 50%;"|&nbsp;
|-
|colspan="2"|&nbsp;
|-
| <code>BCM2711_EMMC2_MIN_FREQ = 400000;</code>
| Default minimum of 400KHz
|-
| <code>BCM2711_EMMC2_MAX_FREQ = 250000000;</code>
| Default clock rate based on the default settings from the firmware (Requested from firmware during start)
|-
|}
</div></div>
<br /> 
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;">
<div style="font-size: 14px; padding-left: 12px;">'''BCM2711 clock (system timer)''' <code> BCM2711_SYS_CLOCK_* </code></div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
| <code>BCM2711_SYS_CLOCK_DESCRIPTION = 'BCM2838 System Timer Clock';</code>
| style="width: 50%;"|&nbsp;
|-
|}
</div></div>
<br /> 
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;">
<div style="font-size: 14px; padding-left: 12px;">'''BCM2711 clock (ARM timer)''' <code> BCM2711_ARM_CLOCK_* </code></div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
| <code>BCM2711_ARM_CLOCK_DESCRIPTION = 'BCM2838 ARM Timer Clock';</code>
| style="width: 50%;"|&nbsp;
|-
|colspan="2"|&nbsp;
|-
| <code>BCM2711_ARM_CLOCK_MIN_RATE = 976562;</code>
| Default minimum (Divider 255) based on the default settings from the firmware (Recalculated during start)
|-
| <code>BCM2711_ARM_CLOCK_MAX_RATE = 250000000;</code>
| Default maximum (Divider 0) based on the default settings from the firmware (Recalculated during start)
|-
| <code>BCM2711_ARM_CLOCK_DEFAULT_RATE = 3968253;</code>
| Default rate (Divider 62) based on the default settings from the firmware (Recalculated during start)
|-
|colspan="2"|&nbsp;
|-
| <code>BCM2711_ARM_CLOCK_MIN_DIVIDER = 0;</code>
| &nbsp;
|-
| <code>BCM2711_ARM_CLOCK_MAX_DIVIDER = 255;</code>
| &nbsp;
|-
| <code>BCM2711_ARM_CLOCK_DEFAULT_DIVIDER = 62;</code>
| &nbsp;
|-
|colspan="2"|&nbsp;
|-
| <code>BCM2711_ARM_CLOCK_CORE_CLOCK = 250000000;</code>
| Default core clock based on the default settings from the firmware (Requested from firmware during start)
|-
|}
</div></div>
<br /> 
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;">
<div style="font-size: 14px; padding-left: 12px;">'''BCM2711 clock (local timer)''' <code> BCM2711_LOCAL_CLOCK_* </code></div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
| <code>BCM2711_LOCAL_CLOCK_DESCRIPTION = 'BCM2838 Local Timer Clock';</code>
| style="width: 50%;"|&nbsp;
|-
|}
</div></div>
<br /> 
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;">
<div style="font-size: 14px; padding-left: 12px;">'''BCM2711 ARM timer''' <code> BCM2711_ARM_TIMER_* </code></div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
| <code>BCM2711_ARM_TIMER_DESCRIPTION = 'BCM2838 ARM Timer';</code>
| style="width: 50%;"|&nbsp;
|-
|colspan="2"|&nbsp;
|-
| <code>BCM2711_ARM_TIMER_MIN_RATE = 244140;</code>
| Default minimum (Divider 1023) based on the default settings from the firmware (Recalculated during start)
|-
| <code>BCM2711_ARM_TIMER_MAX_RATE = 250000000;</code>
| Default maximum (Divider 0) based on the default settings from the firmware (Recalculated during start)
|-
| <code>BCM2711_ARM_TIMER_DEFAULT_RATE = 1000000;</code>
| Default rate (Divider 249) based on the default settings from the firmware (Recalculated during start)
|-
|colspan="2"|&nbsp;
|-
| <code>BCM2711_ARM_TIMER_MIN_INTERVAL = 1;</code>
| &nbsp;
|-
| <code>BCM2711_ARM_TIMER_MAX_INTERVAL = $FFFFFFFF;</code>
| &nbsp;
|-
|colspan="2"|&nbsp;
|-
| <code>BCM2711_ARM_TIMER_MIN_DIVIDER = 0;</code>
| &nbsp;
|-
| <code>BCM2711_ARM_TIMER_MAX_DIVIDER = 1023;</code>
| &nbsp;
|-
| <code>BCM2711_ARM_TIMER_DEFAULT_DIVIDER = 249;</code>
| &nbsp;
|-
|colspan="2"|&nbsp;
|-
| <code>BCM2711_ARM_TIMER_CORE_CLOCK = 250000000;</code>
| Default core clock based on the default settings from the firmware (Requested from firmware during start)
|-
|}
</div></div>
<br /> 
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;">
<div style="font-size: 14px; padding-left: 12px;">'''BCM2711 local timer''' <code> BCM2711_LOCAL_TIMER_* </code></div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
| <code>BCM2711_LOCAL_TIMER_DESCRIPTION = 'BCM2838 Local Timer';</code>
| style="width: 50%;"|&nbsp;
|-
|}
</div></div>
<br /> 
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;">
<div style="font-size: 14px; padding-left: 12px;">'''BCM2711 random ''' <code> BCM2711_RANDOM_* </code></div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
| <code>BCM2711_RANDOM_DESCRIPTION = 'BCM2838 Random Number Generator (RNG200)';</code>
| style="width: 50%;"|&nbsp;
|-
|colspan="2"|&nbsp;
|-
| <code>BCM2711_RANDOM_WARMUP_COUNT = $00040000;</code>
| The initial numbers generated are "less random" so will be discarded
|-
|}
</div></div>
<br /> 
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;">
<div style="font-size: 14px; padding-left: 12px;">'''BCM2711 mailbox ''' <code> BCM2711_MAILBOX_* </code></div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
| <code>BCM2711_MAILBOX_DESCRIPTION = 'BCM2838 Mailbox';</code>
| style="width: 50%;"|&nbsp;
|-
|}
</div></div>
<br /> 
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;">
<div style="font-size: 14px; padding-left: 12px;">'''BCM2711 watchdog ''' <code> BCM2711_WATCHDOG_* </code></div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
| <code>BCM2711_WATCHDOG_DESCRIPTION = 'BCM2838 Watchdog Timer';</code>
| style="width: 50%;"|&nbsp;
|-
|}
</div></div>
<br /> 
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;">
<div style="font-size: 14px; padding-left: 12px;">'''BCM2711 framebuffer''' <code> BCM2711_FRAMEBUFFER_* </code></div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
| <code>BCM2711_FRAMEBUFFER_DESCRIPTION = 'BCM2838 Framebuffer';</code>
| style="width: 50%;"|&nbsp;
|-
| <code>NAME_</code>
| &nbsp;
|-
|}
</div></div>
<br />

=== Type definitions ===
----


'''BCM2711 SPI0/3/4/5/6'''

<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial;">
<code>PBCM2711SPI0Device = ^TBCM2711SPI0Device;</code>

<code>TBCM2711SPI0Device = record</code>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
|colspan="2"|''SPI Properties''
|-
| <code>SPI:TSPIDevice;</code>
| style="width: 50%;"|&nbsp;
|-
|colspan="2"|''BCM2711 Properties''
|-
| <code>Id:LongWord;</code>
| Id of this device (0/3/4/5/6)
|-
| <code>IRQ:LongWord;</code>
| IRQ of this device
|-
| <code>Address:Pointer;</code>
| Device register base address
|-
| <code>CoreClock:LongWord;</code>
| Core clock rate
|-
| <code>MOSIPin:LongWord;</code>
| GPIO pin for the MOSI line
|-
| <code>MISOPin:LongWord;</code>
| GPIO pin for the MISO line
|-
| <code>CS0Pin:LongWord;</code>
| GPIO pin for the CS0 line
|-
| <code>CS1Pin:LongWord;</code>
| GPIO pin for the CS1 line
|-
| <code>CS2Pin:LongWord;</code>
| GPIO pin for the CS2 line
|-
| <code>SCLKFunction:LongWord;</code>
| GPIO function for the SCLK line
|-
| <code>MOSIFunction:LongWord;</code>
| GPIO function for the MOSI line
|-
| <code>MISOFunction:LongWord;</code>
| GPIO function for the MISO line
|-
| <code>CS0Function:LongWord;</code>
| GPIO function for the CS0 line
|-
| <code>CS1Function:LongWord;</code>
| GPIO function for the CS1 line
|-
| <code>CS2Function:LongWord;</code>
| GPIO function for the CS2 line
|-
|colspan="2"|''Transfer Properties''
|-
| <code>Mode:LongWord;</code>
| Mode of current transfer (BCM2711_SPI0_MODE_IRQ / BCM2711_SPI0_MODE_DMA / BCM2711_SPI0_MODE_PIO)
|-
| <code>Source:Pointer;</code>
| Pointer to the source for current transfer (nil if reading only)
|-
| <code>Dest:Pointer;</code>
| Pointer to the destination for current transfer (nil if writing only)
|-
| <code>Count:LongWord;</code>
| Count of bytes for current transfer
|-
| <code>SourceRemain:LongWord;</code>
| Source bytes remaining for current transfer
|-
| <code>DestRemain:LongWord;</code>
| Destination bytes remaining for current transfer
|-
|colspan="2"|''Statistics Properties''
|- 
| <code>InterruptCount:LongWord;</code>
| Number of interrupt requests received by the device
|-
|}
</div></div>

'''BCM2711 I2C0/1/2/3/4/5/6/7'''

<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial;">
<code>PBCM2711I2C0Device = ^TBCM2711I2C0Device;</code>

<code>TBCM2711I2C0Device = record</code>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
|colspan="2"|''I2C Properties''
|-
| <code>I2C:TI2CDevice;</code>
| style="width: 50%;"|&nbsp;
|-
|colspan="2"|''BCM2711 Properties''
|-
| <code>Id:LongWord;</code>
| Id of this device (0/1/3/4/5/6)
|-
| <code>IRQ:LongWord;</code>
| IRQ of this device
|-
| <code>Address:Pointer;</code>
| Device register base address
|-
| <code>CoreClock:LongWord;</code>
| Core clock rate
|-
| <code>SDAPin:LongWord;</code>
| GPIO pin for the SDA line
|-
| <code>SCLPin:LongWord;</code>
| GPIO pin for the SCL line
|-
| <code>SDAFunction:LongWord;</code>
| GPIO function for the SDA line
|-
| <code>SCLFunction:LongWord;</code>
| GPIO function for the SCL line
|-
|colspan="2"|''Transfer Properties''
|-
| <code>Mode:LongWord;</code>
| Mode of current transfer (BCM2711_I2C0_MODE_WRITE / BCM2711_I2C0_MODE_READ)
|-
| <code>Data:Pointer;</code>
| Pointer to the data for current transfer
|-
| <code>Count:LongWord;</code>
| Count of bytes for current transfer
|-
| <code>Remain:LongWord;</code>
| Bytes remaining for current transfer
|-
| <code>Error:LongBool;</code>
| True if an error occurred during the transfer
|-
|colspan="2"|''Statistics Properties''
|- 
| <code>InterruptCount:LongWord;{</code>
| Number of interrupt requests received by the device
|-
|}
</div></div>
 
'''BCM2711 SPI1/2 (AUX)'''

<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial;">
<code>PBCM2711SPI1Device = ^TBCM2711SPI1Device;</code>

<code>TBCM2711SPI1Device = record</code>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
|colspan="2"|''SPI Properties''
|-
| <code>SPI:TSPIDevice;</code>
| style="width: 50%;"|&nbsp;
|-
|colspan="2"|''BCM2711 Properties''
|-
| <code>Address:Pointer;</code>
| Device register base address
|-
| <code>CoreClock:LongWord;</code>
| Core clock rate
|-
|colspan="2"|''Transfer Properties''
|-
|colspan="2"|&nbsp;
|-
|}
</div></div>

'''BCM2711 I2c slave buffer'''

<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial;">
<code>PBCM2711I2CSlaveBuffer = ^TBCM2711I2CSlaveBuffer;</code>

<code>TBCM2711I2CSlaveBuffer = record</code>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
| <code>Wait:TSemaphoreHandle;</code>
| Data ready semaphore
|-
| <code>Start:LongWord;</code>
| Index of first available buffer entry
|-
| <code>Count:LongWord;</code>
| Number of available entries in the buffer
|-
| <code>Buffer:array[0..(BCM2711_I2CSLAVE_BUFFER_SIZE - 1)] of Byte;</code>
| &nbsp;
|-
|}
</div></div>

'''BCM2711 I2c slave'''

<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial;">
<code>PBCM2711I2CSlave = ^TBCM2711I2CSlave;</code>

<code>TBCM2711I2CSlave = record</code>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
|colspan="2"|''I2C Properties''
|-
| <code>I2C:TI2CDevice;</code>
| &nbsp;
|-
|colspan="2"|''BCM2711 Properties''
|-
| <code>IRQ:LongWord;</code>
| IRQ of this device
|-
| <code>Address:Pointer;</code>
| Device register base address
|-
| <code>Lock:TSpinHandle;</code>
| Device lock (Differs from lock in I2C device) (Spin lock due to use by interrupt handler)
|-
| <code>SDAPin:LongWord;</code>
| GPIO pin for the SDA line
|-
| <code>SCLPin:LongWord;</code>
| GPIO pin for the SCL line
|-
| <code>SDAFunction:LongWord;</code>
| GPIO function for the SDA line
|-
| <code>SCLFunction:LongWord;</code>
| GPIO function for the SCL line
|-
|colspan="2"|''Transfer Properties''
|-
| <code>Receive:TBCM2711I2CSlaveBuffer;</code>
| Receive Data Buffer
|-
| <code>Transmit:TBCM2711I2CSlaveBuffer;</code>
| Transmit Data Buffer
|-
|colspan="2"|''Statistics Properties''
|-
| <code>InterruptCount:LongWord;</code>
| Number of interrupt requests received by the device
|-
|}
</div></div>
 
'''BCM2711 DMA'''

<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial;">
<code>PBCM2711DMAHost = ^TBCM2711DMAHost;</code>

<code>TBCM2711DMAHost = record</code>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
|colspan="2"|''DMA Properties''
|-
| <code>DMA:TDMAHost;</code>
| style="width: 50%;"|&nbsp;
|-
|colspan="2"|''BCM2711 Properties''
|-
| <code>ChannelMask:LongWord;</code>
| Mask of available channels (Passed from GPU firmware)
|-
| <code>ChannelFree:LongWord;</code>
| Bitmap of current free channels
|-
| <code>ChannelLock:TMutexHandle;</code>
| Lock for access to ChannelFree
|-
| <code>ChannelWait:TSemaphoreHandle;</code>
| Number of free normal channels in ChannelFree
|-
| <code>Channel40:TSemaphoreHandle;</code>
| Number of free 40 bit channels in ChannelFree
|-
| <code>ChannelLite:TSemaphoreHandle;</code>
| Number of free DMA Lite channels in ChannelFree
|-
| <code>ChannelBulk:TSemaphoreHandle;</code>
| Number of free DMA Bulk channels in ChannelFree
|-
| <code>Channels:array[0..BCM2711_DMA_CHANNEL_COUNT - 1] of TBCM2711DMAChannel;</code>
| Channel information for each DMA channel on the host
|-
| <code>EnableRegister:PLongWord;</code>
| &nbsp;
|-
| <code>InterruptRegister:PLongWord;</code>
| &nbsp;
|-
|colspan="2"|''Statistics Properties'' 
|- 
| <code>InterruptCount:LongWord;</code>
| Number of interrupt requests received by the host controller
|-
|}
</div></div>

'''BCM2711 DMA channel'''

<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial;">
<code>PBCM2711DMAChannel = ^TBCM2711DMAChannel;</code>

<code>TBCM2711DMAChannel = record</code>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
| <code>Host:PBCM2711DMAHost;</code>
| style="width: 50%;"|DMA host this channel belongs to
|-
| <code>Request:PDMARequest;</code>
| Current DMA request pending on this channel (or nil of no request is pending)
|-
| <code>Number:LongWord;</code>
| The channel number of this channel
|-
| <code>Interrupt:LongWord;</code>
| The interrupt number of this channel
|-
| <code>Registers:PBCM2838DMARegisters;</code>
| The channel registers for configuration
|-
| <code>Registers40:PBCM2838DMA40Registers;</code>
| The 40 bit channel registers for configuration
|-
|}
</div></div>
 
'''BCM2711 PWM0/1 device'''

<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial;">
<code>PBCM2711PWM0Device = ^TBCM2711PWM0Device;</code>

<code>TBCM2711PWM0Device = record</code>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
|colspan="2"|''PWM Properties''
|-
| <code>PWM:TPWMDevice;</code>
| style="width: 50%;"|&nbsp;
|-
|colspan="2"|''BCM2711 Properties''
|-
| <code>Id:LongWord;</code>
| Id of this device (0/1)
|-
| <code>Address:Pointer;</code>
| Device register base address
|-
| <code>Channel:LongWord;</code>
| Channel for this device
|-
| <code>Scaler:LongWord;</code>
| Scaler for Duty cycle and Period
|-
| <code>Pair:PBCM2711PWM0Device;</code>
| The paired PWM device for the other channel
|-
|colspan="2"|''Audio Properties''
|-
| <code>Audio:PBCM2711PWM0Audio;</code>
| The associated PWM Audio device
|-
|}
</div></div>
 
'''BCM2711 PWM0/1 audio'''

<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial;">
<code>PBCM2711PWM0Audio = ^TBCM2711PWM0Audio;</code>

<code>TBCM2711PWM0Audio = record</code>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
|colspan="2"|''Audio Properties''
|-
| <code>Audio:TAudioDevice;</code>
| style="width: 50%;"|&nbsp;
|-
|colspan="2"|''BCM2711 Properties''
|-
|colspan="2"|&nbsp;
|- 
|colspan="2"|''PWM Properties''
|-
| <code>PWM0:PBCM2711PWM0Device;</code>
| The PWM device for channel 0
|-
| <code>PWM1:PBCM2711PWM0Device;</code>
| The PWM device for channel 1
|-
|}
</div></div>

'''BCM2711 GPIO'''

<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial;">
<code>PBCM2711GPIOBank = ^TBCM2711GPIOBank;</code>

<code>TBCM2711GPIOBank = record</code>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
| <code>GPIO:PGPIODevice;</code>
| style="width: 50%;"|&nbsp;
|-
| <code>Bank:LongWord;</code>
| &nbsp;
|-
| <code>Address:PtrUInt;</code>
| &nbsp;
|-
| <code>PinStart:LongWord;</code>
| &nbsp;
|-
|}
</div></div>

'''BCM2711 GPIO device'''

<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial;">
<code>PBCM2711GPIODevice = ^TBCM2711GPIODevice;</code>

<code>TBCM2711GPIODevice = record</code>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
|colspan="2"|''GPIO Properties''
|-
| <code>GPIO:TGPIODevice;</code>
| style="width: 50%;"|&nbsp;
|-
|colspan="2"|''BCM2711 Properties''
|-
| <code>Lock:TSpinHandle;</code>
| Device lock (Differs from lock in Device portion) (Spin lock due to use by interrupt handler)
|-
| <code>Banks:array[0..BCM2838_GPIO_BANK_COUNT - 1] of TBCM2711GPIOBank;</code>
| &nbsp;
|-
|colspan="2"|''Statistics Properties'' 
|-
| <code>InterruptCount:LongWord;</code>
| Number of interrupt requests received by the device
|-
|}
</div></div>
 
'''BCM2711 UART0/2/3/4/5'''

<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial;">
<code>PBCM2711UART0Device = ^TBCM2711UART0Device;</code>

<code>TBCM2711UART0Device = record</code>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
|colspan="2"|''UART Properties''
|-
| <code>UART:TUARTDevice;</code>
| style="width: 50%;"|&nbsp;
|-
|colspan="2"|''BCM2711 Properties''
|-
| <code>Id:LongWord;</code>
| Id of this device (0/2/3/4/5)
|-
| <code>IRQ:LongWord;</code>
| IRQ of this device
|-
| <code>Lock:TSpinHandle;</code>
| Device lock (Differs from lock in UART device) (Spin lock due to use by interrupt handler)
|-
| <code>Address:Pointer;</code>
| Device register base address
|-
| <code>ClockRate:LongWord;</code>
| Device clock rate
|-
| <code>TXDPin:LongWord;</code>
| GPIO pin for the TXD line
|-
| <code>RXDPin:LongWord;</code>
| GPIO pin for the RXD line
|-
| <code>CTSPin:LongWord;</code>
| GPIO pin for the CTS line
|-
| <code>RTSPin:LongWord;</code>
| GPIO pin for the RTS line
|-
| <code>TXDFunction:LongWord;</code>
| GPIO function for the TXD line
|-
| <code>RXDFunction:LongWord;</code>
| GPIO function for the RXD line
|-
| <code>CTSFunction:LongWord;</code>
| GPIO function for the CTS line
|-
| <code>RTSFunction:LongWord;</code>
| GPIO function for the RTS line
|-
| <code>Start:LongWord;</code>
| Index of first available buffer entry
|-
| <code>Count:LongWord;</code>
| Number of available entries in the buffer
|-
| <code>Buffer:array[0..(BCM2711_UART0_RX_BUFFER_SIZE - 1)] of Word;</code>
| Buffer for received data (Includes data and status)
|-
|colspan="2"|''Statistics Properties''
|- 
| <code>InterruptCount:LongWord;</code>
| Number of interrupt requests received by the device
|-
|}
</div></div>
 
'''BCM2711 UART1'''

<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial;">
<code>PBCM2711UART1Device = ^TBCM2711UART1Device;</code>

<code>TBCM2711UART1Device = record</code>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
|colspan="2"|''UART Properties''
|-
| <code>UART:TUARTDevice;</code>
| style="width: 50%;"|&nbsp;
|-
|colspan="2"|''BCM2711 Properties''
|-
|colspan="2"|&nbsp;
|-
|}
</div></div>
 
'''BCM2711 EMMC0/EMMC2 (SDHCI)'''

<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial;">
<code>PBCM2711EMMC0Host = ^TBCM2711EMMC0Host;</code>

<code>TBCM2711EMMC0Host = record</code>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
|colspan="2"|''SDHCI Properties''
|-
| <code>SDHCI:TSDHCIHost;</code>
| style="width: 50%;"|&nbsp;
|-
|colspan="2"|''BCM2711 Properties''
|-
| <code>Id:LongWord;</code>
| &nbsp;
|-
| <code>IRQ:LongWord;</code>
| &nbsp;
|-
| <code>FIQ:LongBool;</code>
| &nbsp;
|-
| <code>SDIO:LongBool;</code>
| &nbsp;
|-
| <code>PowerId:LongWord;</code>
| &nbsp;
|-
| <code>ClockId:LongWord;</code>
| &nbsp;
|-
| <code>WriteDelay:LongWord;</code>
| &nbsp;
|-
| <code>DelayClock:LongWord;</code>
| &nbsp;
|-
| <code>ShadowRegister:LongWord;</code>
| &nbsp;
|-
|}
</div></div>

'''BCM2711 system clock'''

<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial;">
<code>PBCM2711SystemClock = ^TBCM2711SystemClock;</code>

<code>TBCM2711SystemClock = record</code>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
|colspan="2"|''Clock Properties''
|-
| <code>Clock:TClockDevice;</code>
| style="width: 50%;"|&nbsp;
|-
|colspan="2"|''BCM2711 Properties''
|-
|colspan="2"|&nbsp;
|-
|}
</div></div>

'''BCM2711 ARM clock'''

<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial;">
<code>PBCM2711ARMClock = ^TBCM2711ARMClock;</code>

<code>TBCM2711ARMClock = record</code>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
|colspan="2"|''Clock Properties''
|-
| <code>Clock:TClockDevice;</code>
| style="width: 50%;"|&nbsp;
|-
|colspan="2"|''BCM2711 Properties''
|-
| <code>CoreClock:LongWord;</code>
| Core clock rate
|-
|}
</div></div>
 
'''BCM2711 ARM timer'''

<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial;">
<code>PBCM2711ARMTimer = ^TBCM2711ARMTimer;</code>

<code>TBCM2711ARMTimer = record</code>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
|colspan="2"|''Timer Properties''
|-
| <code>Timer:TTimerDevice;</code>
| style="width: 50%;"|&nbsp;
|-
|colspan="2"|''BCM2711 Properties''
|-
| <code>CoreClock:LongWord;</code>
| Core clock rate
|-
|colspan="2"|''Statistics Properties'' 
|-  
| <code>InterruptCount:LongWord;</code>
| Number of interrupt requests received by the device
|-
|}
</div></div>
 
'''BCM2711 local timer'''

<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial;">
<code>PBCM2711LocalTimer = ^TBCM2711LocalTimer;</code>

<code>TBCM2711LocalTimer = record</code>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
|colspan="2"|''Timer Properties''
|-
| <code>Timer:TTimerDevice;</code>
| style="width: 50%;"|&nbsp;
|-
|colspan="2"|''BCM2711 Properties''
|-
| <code>CoreClock:LongWord;</code>
| Core clock rate
|-
|colspan="2"|''Statistics Properties'' 
|- 
| <code>InterruptCount:LongWord;</code>
| Number of interrupt requests received by the device
|-
|}
</div></div>
 
'''BCM2711 random'''

<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial;">
<code>PBCM2711Random = ^TBCM2711Random;</code>

<code>TBCM2711Random = record</code>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
|colspan="2"|''Random Properties''
|- 
| <code>Random:TRandomDevice;</code>
| style="width: 50%;"|&nbsp;
|-
|colspan="2"|''BCM2711 Properties''
|-
|colspan="2"|&nbsp;
|-
|}
</div></div>

'''BCM2711 mailbox'''

<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial;">
<code>PBCM2711Mailbox = ^TBCM2711Mailbox;</code>

<code>TBCM2711Mailbox = record</code>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
|colspan="2"|''Mailbox Properties''
|-
| <code>Mailbox:TMailboxDevice;</code>
| style="width: 50%;"|&nbsp;
|-
|colspan="2"|''BCM2711 Properties''
|-
|colspan="2"|&nbsp;
|-
|}
</div></div>
 
'''BCM2711 watchdog'''

<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial;">
<code>PBCM2711Watchdog = ^TBCM2711Watchdog;</code>

<code>TBCM2711Watchdog = record</code>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
|colspan="2"|''Watchdog Properties''
|-
| <code>Watchdog:TWatchdogDevice;</code>
| style="width: 50%;"|&nbsp;
|-
|colspan="2"|''BCM2711 Properties''
|-
|colspan="2"|&nbsp;
|-
|}
</div></div>

'''BCM2711 framebuffer'''

<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial;">
<code>PBCM2711Framebuffer = ^TBCM2711Framebuffer;</code>

<code>TBCM2711Framebuffer = record</code>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
|colspan="2"|''Framebuffer Properties''
|-
| <code>Framebuffer:TFramebufferDevice;</code>
| style="width: 50%;"|&nbsp;
|-
|colspan="2"|''BCM2711 Properties''
|-
| <code>MultiDisplay:LongBool;</code>
| &nbsp;
|-
| <code>DisplayNum:LongWord;</code>
| &nbsp;
|-
| <code>DisplaySettings:TDisplaySettings;</code>
| &nbsp;
|-
|}
</div></div>
<br />

=== Public variables ===
----

''None defined''

=== Function declarations ===
----


'''Initialization functions'''
 
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">procedure BCM2711Init;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! Note
| None documented
|-
|}
</div></div>
<br /> 

'''BCM2711 SPI0/3/4/5/6 functions'''

<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function BCM2711SPI0Start(SPI:PSPIDevice; Mode,ClockRate,ClockPhase,ClockPolarity:LongWord):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! Note
| None documented
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function BCM2711SPI0Stop(SPI:PSPIDevice):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! Note
| None documented
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function BCM2711SPI0WriteRead(SPI:PSPIDevice; ChipSelect:Word; Source,Dest:Pointer; Size,Flags:LongWord; var Count:LongWord):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! Note
| None documented
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function BCM2711SPI0SetMode(SPI:PSPIDevice; Mode:LongWord):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! Note
| None documented
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function BCM2711SPI0SetClockRate(SPI:PSPIDevice; ChipSelect:Word; ClockRate:LongWord):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! Note
| None documented
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function BCM2711SPI0SetClockPhase(SPI:PSPIDevice; ClockPhase:LongWord):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
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! Note
| None documented
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<pre style="border: 0; padding-bottom:0px;">function BCM2711SPI0SetClockPolarity(SPI:PSPIDevice; ClockPolarity:LongWord):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
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{| class="wikitable" style="font-size: 14px; background: white;"
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! Note
| None documented
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<br />

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<pre style="border: 0; padding-bottom:0px;">function BCM2711SPI0SetSelectPolarity(SPI:PSPIDevice; ChipSelect:Word; SelectPolarity:LongWord):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
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{| class="wikitable" style="font-size: 14px; background: white;"
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! Note
| None documented
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<br />
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<pre style="border: 0; padding-bottom:0px;">procedure BCM2711SPI0ReadFIFO(SPI:PBCM2711SPI0Device);</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Caller will hold the SPI device lock</div>
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{| class="wikitable" style="font-size: 14px; background: white;"
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! Note
| Called from within the interrupt handler
|-
|}
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<br />
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<pre style="border: 0; padding-bottom:0px;">procedure BCM2711SPI0WriteFIFO(SPI:PBCM2711SPI0Device);</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Caller will hold the SPI device lock</div>
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{| class="wikitable" style="font-size: 14px; background: white;"
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! Note
| Called from within the interrupt handler
|-
|}
</div></div>
<br />
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<pre style="border: 0; padding-bottom:0px;">function BCM2711SPI0SharedInterruptHandler(Number,CPUID,Flags:LongWord; SPI:PBCM2711SPI0Device):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
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{| class="wikitable" style="font-size: 14px; background: white;"
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! Note
| None documented
|-
|}
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<br />
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<pre style="border: 0; padding-bottom:0px;">procedure BCM2711SPI0DMARequestCompleted(Request:PDMARequest);</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' DMA Request completion callback for SPI0</div>
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! Note
| None documented
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<br />
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<pre style="border: 0; padding-bottom:0px;">procedure BCM2711SPI0GetGPIOConfig(SPI:PBCM2711SPI0Device);</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Setup the GPIO config for the supplied SPI0 device</div>
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{| class="wikitable" style="font-size: 14px; background: white;"
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! Note
| None documented
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'''BCM2711 I2C0/1/2/3/4/5/6/7 functions'''

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<pre style="border: 0; padding-bottom:0px;">function BCM2711I2C0Start(I2C:PI2CDevice; Rate:LongWord):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
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{| class="wikitable" style="font-size: 14px; background: white;"
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! Note
| None documented
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<pre style="border: 0; padding-bottom:0px;">function BCM2711I2C0Stop(I2C:PI2CDevice):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
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{| class="wikitable" style="font-size: 14px; background: white;"
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! Note
| None documented
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<pre style="border: 0; padding-bottom:0px;">function BCM2711I2C0Read(I2C:PI2CDevice; Address:Word; Buffer:Pointer; Size:LongWord; var Count:LongWord):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
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{| class="wikitable" style="font-size: 14px; background: white;"
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! Note
| None documented
|-
|}
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<br />
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<pre style="border: 0; padding-bottom:0px;">function BCM2711I2C0Write(I2C:PI2CDevice; Address:Word; Buffer:Pointer; Size:LongWord; var Count:LongWord):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
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{| class="wikitable" style="font-size: 14px; background: white;"
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! Note
| None documented
|-
|}
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<pre style="border: 0; padding-bottom:0px;">function BCM2711I2C0WriteRead(I2C:PI2CDevice; Address:Word; Initial:Pointer; Len:LongWord; Data:Pointer; Size:LongWord; var Count:LongWord):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
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{| class="wikitable" style="font-size: 14px; background: white;"
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! Note
| None documented
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|}
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<br />
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<pre style="border: 0; padding-bottom:0px;">function BCM2711I2C0WriteWrite(I2C:PI2CDevice; Address:Word; Initial:Pointer; Len:LongWord; Data:Pointer; Size:LongWord; var Count:LongWord):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
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{| class="wikitable" style="font-size: 14px; background: white;"
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! Note
| None documented
|-
|}
</div></div>
<br />
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<pre style="border: 0; padding-bottom:0px;">function BCM2711I2C0SetRate(I2C:PI2CDevice; Rate:LongWord):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
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{| class="wikitable" style="font-size: 14px; background: white;"
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! Note
| None documented
|-
|}
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<br />
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<pre style="border: 0; padding-bottom:0px;">function BCM2711I2C0SetAddress(I2C:PI2CDevice; Address:Word):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
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{| class="wikitable" style="font-size: 14px; background: white;"
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! Note
| None documented
|-
|}
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<br />
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<pre style="border: 0; padding-bottom:0px;">procedure BCM2711I2C0FillFIFO(I2C:PBCM2711I2C0Device);</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Caller will hold the I2C device lock</div>
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{| class="wikitable" style="font-size: 14px; background: white;"
|-
! Note
| Called from within the interrupt handler
|-
|}
</div></div>
<br />
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<pre style="border: 0; padding-bottom:0px;">procedure BCM2711I2C0DrainFIFO(I2C:PBCM2711I2C0Device);</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Caller will hold the I2C device lock</div>
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{| class="wikitable" style="font-size: 14px; background: white;"
|-
! Note
| Called from within the interrupt handler
|-
|}
</div></div>
<br />
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<pre style="border: 0; padding-bottom:0px;">function BCM2711I2C0SharedInterruptHandler(Number,CPUID,Flags:LongWord; I2C:PBCM2711I2C0Device):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
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{| class="wikitable" style="font-size: 14px; background: white;"
|-
! Note
| Thread submitting the current request will hold the I2C device lock
|-
|}
</div></div>
<br />
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<pre style="border: 0; padding-bottom:0px;">procedure BCM2711I2C0GetGPIOConfig(I2C:PBCM2711I2C0Device);</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Setup the GPIO config for the supplied I2C0 device</div>
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{| class="wikitable" style="font-size: 14px; background: white;"
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! Note
| None documented
|-
|}
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<br />

'''BCM2711 SPI/I2C slave functions'''

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<pre style="border: 0; padding-bottom:0px;">function BCM2711I2CSlaveStart(I2C:PI2CDevice; Rate:LongWord):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Implementation of I2CSlaveStart API for BCM2711 I2C slave</div>
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{| class="wikitable" style="font-size: 14px; background: white;"
|-
! Note
| Not intended to be called directly by applications, use I2CSlaveStart instead.
Rate is not applicable for I2C slave devices
|-
|}
</div></div>
<br />
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<pre style="border: 0; padding-bottom:0px;">function BCM2711I2CSlaveStop(I2C:PI2CDevice):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Implementation of I2CSlaveStop API for BCM2711 I2C slave</div>
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{| class="wikitable" style="font-size: 14px; background: white;"
|-
! Note
| Not intended to be called directly by applications, use I2CSlaveStop instead.
|-
|}
</div></div>
<br />
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<pre style="border: 0; padding-bottom:0px;">function BCM2711I2CSlaveRead(I2C:PI2CDevice; Address:Word; Buffer:Pointer; Size:LongWord; var Count:LongWord):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Implementation of I2CSlaveRead API for BCM2711 I2C slave</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! Note
| Not intended to be called directly by applications, use I2CSlaveRead instead.
Address is not applicable for I2C slave devices
|-
|}
</div></div>
<br />
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<pre style="border: 0; padding-bottom:0px;">function BCM2711I2CSlaveWrite(I2C:PI2CDevice; Address:Word; Buffer:Pointer; Size:LongWord; var Count:LongWord):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Implementation of I2CSlaveWrite API for BCM2711 I2C slave</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! Note
| Not intended to be called directly by applications, use I2CSlaveWrite instead.
Address is not applicable for I2C slave devices
|-
|}
</div></div>
<br />
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<pre style="border: 0; padding-bottom:0px;">function BCM2711I2CSlaveSetAddress(I2C:PI2CDevice; Address:Word):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Implementation of I2CSlaveSetAddress API for BCM2711 I2C slave</div>
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{| class="wikitable" style="font-size: 14px; background: white;"
|-
! Note
| Not intended to be called directly by applications, use I2CSlaveSetAddress instead.
|-
|}
</div></div>
<br />

'''BCM2711 DMA functions'''

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<pre style="border: 0; padding-bottom:0px;">function BCM2711DMAHostStart(DMA:PDMAHost):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
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{| class="wikitable" style="font-size: 14px; background: white;"
|-
! Note
| None documented
|-
|}
</div></div>
<br />
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<pre style="border: 0; padding-bottom:0px;">function BCM2711DMAHostStop(DMA:PDMAHost):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
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{| class="wikitable" style="font-size: 14px; background: white;"
|-
! Note
| None documented
|-
|}
</div></div>
<br />
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<pre style="border: 0; padding-bottom:0px;">function BCM2711DMAHostSubmit(DMA:PDMAHost; Request:PDMARequest):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
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{| class="wikitable" style="font-size: 14px; background: white;"
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! Note
| None documented
|-
|}
</div></div>
<br />
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<pre style="border: 0; padding-bottom:0px;">function BCM2711DMAHostCancel(DMA:PDMAHost; Request:PDMARequest):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
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{| class="wikitable" style="font-size: 14px; background: white;"
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! Note
| None documented
|-
|}
</div></div>
<br />
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<pre style="border: 0; padding-bottom:0px;">procedure BCM2711DMAInterruptHandler(Channel:PBCM2711DMAChannel);</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' DMA Channels 0 to 6 each have a dedicated interrupt, this handler simply clears the interrupt and sends a completion on the associated channel</div>
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{| class="wikitable" style="font-size: 14px; background: white;"
|-
! Note
| None documented
|-
|}
</div></div>
<br />
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<pre style="border: 0; padding-bottom:0px;">procedure BCM2711DMA40InterruptHandler(Channel:PBCM2711DMAChannel);</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' DMA Channels 11 to 14 each have a dedicated interrupt, this handler simply clears the interrupt and sends a completion on the associated channel</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! Note
| None documented
|-
|}
</div></div>
<br />
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<pre style="border: 0; padding-bottom:0px;">procedure BCM2711DMASharedInterruptHandler(DMA:PBCM2711DMAHost);</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' DMA Channels 7 to 10 share a common interrupt, this alternate handler determines which one triggered the current interrupt and sends a completion on that channel</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! Note
| None documented
|-
|}
</div></div>
<br />
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<pre style="border: 0; padding-bottom:0px;">procedure BCM2711DMARequestComplete(Channel:PBCM2711DMAChannel);</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! Note
| None documented
|-
|}
</div></div>
<br />
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<pre style="border: 0; padding-bottom:0px;">function BCM2711DMAPeripheralToDREQ(Peripheral:LongWord):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! Note
| None documented
|-
|}
</div></div>
<br />
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<pre style="border: 0; padding-bottom:0px;">procedure BCM2711DMADataToControlBlock(Request:PDMARequest; Data:PDMAData; Block:PBCM2838DMAControlBlock; Bulk,Lite:Boolean);</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! Note
| None documented
|-
|}
</div></div>
<br />
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<pre style="border: 0; padding-bottom:0px;">procedure BCM2711DMA40DataToControlBlock(Request:PDMARequest; Data:PDMAData; Block:PBCM2838DMA40ControlBlock);</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! Note
| None documented
|-
|}
</div></div>
<br />

'''BCM2711 PWM0/1 functions'''

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<pre style="border: 0; padding-bottom:0px;">function BCM2711PWM0Start(PWM:PPWMDevice):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! Note
| None documented
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function BCM2711PWM0Stop(PWM:PPWMDevice):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! Note
| None documented
|-
|}
</div></div>
<br /> 
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<pre style="border: 0; padding-bottom:0px;">function BCM2711PWM0Write(PWM:PPWMDevice; Value:LongWord):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
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<pre style="border: 0; padding-bottom:0px;">function BCM2711PWM0SetGPIO(PWM:PPWMDevice; GPIO:LongWord):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
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{| class="wikitable" style="font-size: 14px; background: white;"
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! Note
| None documented
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<pre style="border: 0; padding-bottom:0px;">function BCM2711PWM0ResetGPIO(PWM:PPWMDevice; GPIO:LongWord):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
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{| class="wikitable" style="font-size: 14px; background: white;"
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! Note
| None documented
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<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function BCM2711PWM0SetMode(PWM:PPWMDevice; Mode:LongWord):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
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{| class="wikitable" style="font-size: 14px; background: white;"
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! Note
| None documented
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<pre style="border: 0; padding-bottom:0px;">function BCM2711PWM0SetRange(PWM:PPWMDevice; Range:LongWord):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
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{| class="wikitable" style="font-size: 14px; background: white;"
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! Note
| None documented
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<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function BCM2711PWM0SetFrequency(PWM:PPWMDevice; Frequency:LongWord):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
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{| class="wikitable" style="font-size: 14px; background: white;"
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! Note
| None documented
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<pre style="border: 0; padding-bottom:0px;">function BCM2711PWM0SetPolarity(PWM:PPWMDevice; Polarity:LongWord):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
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{| class="wikitable" style="font-size: 14px; background: white;"
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! Note
| None documented
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<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function BCM2711PWM0Configure(PWM:PPWMDevice; DutyNS,PeriodNS:LongWord):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
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{| class="wikitable" style="font-size: 14px; background: white;"
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! Note
| None documented
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<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function BCM2711PWM0ClockStart(PWM:PPWMDevice; Frequency:LongWord):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
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{| class="wikitable" style="font-size: 14px; background: white;"
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! Note
| None documented
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<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function BCM2711PWM0ClockStop(PWM:PPWMDevice):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
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{| class="wikitable" style="font-size: 14px; background: white;"
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! Note
| None documented
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<pre style="border: 0; padding-bottom:0px;">function BCM2711PWM0ClockEnabled(PWM:PPWMDevice):Boolean;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
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! Note
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'''BCM2711 GPIO functions'''

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<pre style="border: 0; padding-bottom:0px;">function BCM2711GPIOStart(GPIO:PGPIODevice):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
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{| class="wikitable" style="font-size: 14px; background: white;"
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! Note
| None documented
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<pre style="border: 0; padding-bottom:0px;">function BCM2711GPIOStop(GPIO:PGPIODevice):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
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{| class="wikitable" style="font-size: 14px; background: white;"
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! Note
| None documented
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<pre style="border: 0; padding-bottom:0px;">function BCM2711GPIORead(GPIO:PGPIODevice; Reg:LongWord):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
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{| class="wikitable" style="font-size: 14px; background: white;"
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! Note
| None documented
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<pre style="border: 0; padding-bottom:0px;">procedure BCM2711GPIOWrite(GPIO:PGPIODevice; Reg,Value:LongWord);</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
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! Note
| None documented
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<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function BCM2711GPIOInputGet(GPIO:PGPIODevice; Pin:LongWord):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
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{| class="wikitable" style="font-size: 14px; background: white;"
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! Note
| None documented
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<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function BCM2711GPIOInputWait(GPIO:PGPIODevice; Pin,Trigger,Timeout:LongWord):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
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{| class="wikitable" style="font-size: 14px; background: white;"
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! Note
| None documented
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<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function BCM2711GPIOInputEvent(GPIO:PGPIODevice; Pin,Trigger,Flags,Timeout:LongWord; Callback:TGPIOCallback; Data:Pointer):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
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{| class="wikitable" style="font-size: 14px; background: white;"
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! Note
| None documented
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</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function BCM2711GPIOInputCancel(GPIO:PGPIODevice; Pin:LongWord):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
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{| class="wikitable" style="font-size: 14px; background: white;"
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! Note
| None documented
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function BCM2711GPIOOutputSet(GPIO:PGPIODevice; Pin,Level:LongWord):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
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{| class="wikitable" style="font-size: 14px; background: white;"
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! Note
| None documented
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|}
</div></div>
<br />
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<pre style="border: 0; padding-bottom:0px;">function BCM2711GPIOPullGet(GPIO:PGPIODevice; Pin:LongWord):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
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{| class="wikitable" style="font-size: 14px; background: white;"
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! Note
| None documented
|-
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</div></div>
<br />
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<pre style="border: 0; padding-bottom:0px;">function BCM2711GPIOPullSelect(GPIO:PGPIODevice; Pin,Mode:LongWord):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
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{| class="wikitable" style="font-size: 14px; background: white;"
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! Note
| None documented
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|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function BCM2711GPIOFunctionGet(GPIO:PGPIODevice; Pin:LongWord):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
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! Note
| None documented
|-
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</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function BCM2711GPIOFunctionSelect(GPIO:PGPIODevice; Pin,Mode:LongWord):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
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! Note
| None documented
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">procedure BCM2711GPIOInterruptHandler(Bank:PBCM2711GPIOBank);</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
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! Note
| None documented
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">procedure BCM2711GPIOEventTrigger(Pin:PGPIOPin);</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
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{| class="wikitable" style="font-size: 14px; background: white;"
|-
! Note
| None documented
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">procedure BCM2711GPIOEventTimeout(Event:PGPIOEvent);</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
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! Note
| None documented
|-
|}
</div></div>
<br />

'''BCM2711 UART0/2/3/4/5 functions'''

<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function BCM2711UART0Open(UART:PUARTDevice; BaudRate,DataBits,StopBits,Parity,FlowControl:LongWord):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Implementation of UARTDeviceOpen API for BCM2711 UART0</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! Note
| Not intended to be called directly by applications, use UARTDeviceOpen instead.
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function BCM2711UART0Close(UART:PUARTDevice):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Implementation of UARTDeviceClose API for BCM2711 UART0</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! Note
| Not intended to be called directly by applications, use UARTDeviceClose instead.
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function BCM2711UART0Read(UART:PUARTDevice; Buffer:Pointer; Size,Flags:LongWord; var Count:LongWord):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Implementation of UARTDeviceRead API for BCM2711 UART0</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! Note
| Not intended to be called directly by applications, use UARTDeviceRead instead.
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function BCM2711UART0Write(UART:PUARTDevice; Buffer:Pointer; Size,Flags:LongWord; var Count:LongWord):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Implementation of UARTDeviceWrite API for BCM2711 UART0</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! Note
| Not intended to be called directly by applications, use UARTDeviceWrite instead.
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function BCM2711UART0GetStatus(UART:PUARTDevice):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Implementation of UARTDeviceGetStatus API for BCM2711 UART0</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! Note
| Not intended to be called directly by applications, use UARTDeviceGetStatus instead.
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function BCM2711UART0SetStatus(UART:PUARTDevice; Status:LongWord):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Implementation of UARTDeviceSetStatus API for BCM2711 UART0</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! Note
| Not intended to be called directly by applications, use UARTDeviceSetStatus instead.
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function BCM2711UART0SharedInterruptHandler(Number,CPUID,Flags:LongWord; UART:PUARTDevice):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Interrupt handler for the BCM2711 UART0 device</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! Note
| Not intended to be called directly by applications
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">procedure BCM2711UART0Receive(UART:PUARTDevice);</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Receive handler for the BCM2711 UART0 device</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! Note
| Not intended to be called directly by applications
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">procedure BCM2711UART0Transmit(UART:PUARTDevice);</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Transmit handler for the BCM2711 UART0 device</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! Note
| Not intended to be called directly by applications
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">procedure BCM2711UART0EnableInterrupt(UART:PBCM2711UART0Device; Interrupt:LongWord);</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Enable the specified interrupt in the interrupt mask register of a BCM2711 UART0 device</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! UART
| The BCM2711 UART0 device to enable the interrupt for
|-
! Interrupt
| The interrupt to enable
|-
! Note
| Caller must hold the UART lock
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">procedure BCM2711UART0DisableInterrupt(UART:PBCM2711UART0Device; Interrupt:LongWord);</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Disable the specified interrupt in the interrupt mask register of a BCM2711 UART0 device</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! UART
| The BCM2711 UART0 device to disable the interrupt for
|-
! Interrupt
| The interrupt to disable
|-
! Note
| Caller must hold the UART lock
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">procedure BCM2711UART0GetGPIOConfig(UART:PBCM2711UART0Device);</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Setup the GPIO config for the supplied UART0 device</div>
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{| class="wikitable" style="font-size: 14px; background: white;"
|-
! Note
| None documented
|-
|}
</div></div>
<br />

'''BCM2711 EMMC0 (SDHCI) functions'''

<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function BCM2711EMMC0HostStart(SDHCI:PSDHCIHost):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Implementation of SDHCIHostStart API for BCM2711 SDHCI</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! Note
| Not intended to be called directly by applications, use SDHCIHostStart instead.
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function BCM2711EMMC0HostStop(SDHCI:PSDHCIHost):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Implementation of SDHCIHostStop API for BCM2711 SDHCI</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! Note
| Not intended to be called directly by applications, use SDHCIHostStop instead.
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function BCM2711EMMC0HostLock(SDHCI:PSDHCIHost):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Implementation of SDHCIHostLock API for BCM2711 SDHCI</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! Note
| Not intended to be called directly by applications, use SDHCIHostLock instead.
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function BCM2711EMMC0HostUnlock(SDHCI:PSDHCIHost):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Implementation of SDHCIHostUnlock API for BCM2711 SDHCI</div>
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{| class="wikitable" style="font-size: 14px; background: white;"
|-
! Note
| Not intended to be called directly by applications, use SDHCIHostUnlock instead.
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function BCM2711EMMC0HostSignal(SDHCI:PSDHCIHost; Semaphore:TSemaphoreHandle):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Implementation of SDHCIHostSignal API for BCM2711 SDHCI</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! Note
| Not intended to be called directly by applications, use SDHCIHostSignal instead.
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function BCM2711EMMC0HostReadByte(SDHCI:PSDHCIHost; Reg:LongWord):Byte;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Implementation of SDHCIHostReadByte API for BCM2711 SDHCI</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! Note
| Not intended to be called directly by applications, use SDHCIHostReadByte instead.
|-
! Note
| The Broadcom document BCM2835-ARM-Peripherals page 66 states the following: Contrary to Arasans documentation the EMMC module registers can only be accessed as 32 bit registers. i.e. The two LSBs of the address are always zero. For this reason this code must simulate Byte and Word reads using LongWord reads.
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function BCM2711EMMC0HostReadWord(SDHCI:PSDHCIHost; Reg:LongWord):Word;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Implementation of SDHCIHostReadWord API for BCM2711 SDHCI</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! Note
| Not intended to be called directly by applications, use SDHCIHostReadWord instead.
|-
! Note
| The Broadcom document BCM2835-ARM-Peripherals page 66 states the following: Contrary to Arasans documentation the EMMC module registers can only be accessed as 32 bit registers. i.e. The two LSBs of the address are always zero. For this reason this code must simulate Byte and Word reads using LongWord reads.
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function BCM2711EMMC0HostReadLong(SDHCI:PSDHCIHost; Reg:LongWord):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Implementation of SDHCIHostReadLong API for BCM2711 SDHCI</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! Note
| Not intended to be called directly by applications, use SDHCIHostReadLong instead.
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">procedure BCM2711EMMC0HostWriteByte(SDHCI:PSDHCIHost; Reg:LongWord; Value:Byte);</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Implementation of SDHCIHostWriteByte API for BCM2711 SDHCI</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! Note
| Not intended to be called directly by applications, use SDHCIHostWriteByte instead.
|-
! Note
| The Broadcom document BCM2835-ARM-Peripherals page 66 states the following: Contrary to Arasans documentation the EMMC module registers can only be accessed as 32 bit registers. i.e. The two LSBs of the address are always zero. For this reason this code must simulate Byte and Word writes using LongWord writes.
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">procedure BCM2711EMMC0HostWriteWord(SDHCI:PSDHCIHost; Reg:LongWord; Value:Word);</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Implementation of SDHCIHostWriteWord API for BCM2711 SDHCI</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! Note
| Not intended to be called directly by applications, use SDHCIHostWriteWord instead.
|-
! Note
| The Broadcom document BCM2835-ARM-Peripherals page 66 states the following: Contrary to Arasans documentation the EMMC module registers can only be accessed as 32 bit registers. i.e. The two LSBs of the address are always zero. For this reason this code must simulate Byte and Word writes using LongWord writes.
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">procedure BCM2711EMMC0HostWriteLong(SDHCI:PSDHCIHost; Reg:LongWord; Value:LongWord);</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Implementation of SDHCIHostWriteLong API for BCM2711 SDHCI</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! Note
| Not intended to be called directly by applications, use SDHCIHostWriteLong instead.
|-
! Note
| The source code of U-Boot and Linux kernel drivers have this comment The Arasan has a bugette whereby it may lose the content of successive writes to registers that are within two SD-card clock cycles of each other (a clock domain crossing problem). It seems, however, that the data register does not have this problem (which is just as well - otherwise we'd have to nobble the DMA engine too). For this reason this code must delay after each write to the registers.
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function BCM2711EMMC0SharedInterruptHandler(Number,CPUID,Flags:LongWord; SDHCI:PSDHCIHost):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Interrupt handler for the BCM2711 SDHCI host controller</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! Note
| Not intended to be called directly by applications
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function BCM2711EMMC0SetupInterrupts(SDHCI:PSDHCIHost):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Configure and enable interrupt handling for the BCM2711 SDHCI</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! Note
| Not intended to be called directly by applications
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function BCM2711EMMC0DeviceGetCardDetect(MMC:PMMCDevice):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Implementation of MMC GetCardDetect for the BCM2711 which does not update the bits in the SDHCI_PRESENT_STATE register to reflect card insertion or removal</div>
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{| class="wikitable" style="font-size: 14px; background: white;"
|-
! Note
| Not intended to be called directly by applications, use MMCDeviceGetCardDetect instead.
|-
|}
</div></div>
<br />

'''BCM2711 system clock functions'''

<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function BCM2711SystemClockRead(Clock:PClockDevice):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Implementation of ClockDeviceRead API for System Clock</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! Note
| Not intended to be called directly by applications, use ClockDeviceRead instead.
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function BCM2711SystemClockRead64(Clock:PClockDevice):Int64;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Implementation of ClockDeviceRead64 API for System Clock</div>
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{| class="wikitable" style="font-size: 14px; background: white;"
|-
! Note
| Not intended to be called directly by applications, use ClockDeviceRead64 instead.
|-
|}
</div></div>
<br />

'''BCM2711 ARM clock functions'''

<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function BCM2711ARMClockStart(Clock:PClockDevice):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Implementation of ClockDeviceStart API for ARM Clock</div>
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{| class="wikitable" style="font-size: 14px; background: white;"
|-
! Note
| Not intended to be called directly by applications, use ClockDeviceStart instead.
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function BCM2711ARMClockStop(Clock:PClockDevice):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Implementation of ClockDeviceStop API for ARM Clock</div>
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{| class="wikitable" style="font-size: 14px; background: white;"
|-
! Note
| Not intended to be called directly by applications, use ClockDeviceStop instead.
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function BCM2711ARMClockRead(Clock:PClockDevice):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Implementation of ClockDeviceRead API for ARM Clock</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! Note
| Not intended to be called directly by applications, use ClockDeviceRead instead.
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function BCM2711ARMClockRead64(Clock:PClockDevice):Int64;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Implementation of ClockDeviceRead64 API for ARM Clock</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! Note
| Not intended to be called directly by applications, use ClockDeviceRead64 instead.
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function BCM2711ARMClockSetRate(Clock:PClockDevice; Rate:LongWord):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Implementation of ClockDeviceSetRate API for ARM Clock</div>
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{| class="wikitable" style="font-size: 14px; background: white;"
|-
! Note
| Not intended to be called directly by applications, use ClockDeviceSetRate instead.
|-
|}
</div></div>
<br />

'''BCM2711 ARM timer functions'''

<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function BCM2711ARMTimerStart(Timer:PTimerDevice):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Implementation of TimerDeviceStart API for ARM Timer</div>
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{| class="wikitable" style="font-size: 14px; background: white;"
|-
! Note
| Not intended to be called directly by applications, use TimerDeviceStart instead.
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function BCM2711ARMTimerStop(Timer:PTimerDevice):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Implementation of TimerDeviceStop API for ARM Timer</div>
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{| class="wikitable" style="font-size: 14px; background: white;"
|-
! Note
| Not intended to be called directly by applications, use TimerDeviceStop instead.
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function BCM2711ARMTimerRead64(Timer:PTimerDevice):Int64;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Implementation of TimerDeviceRead64 API for ARM Timer</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! Note
| Not intended to be called directly by applications, use TimerDeviceRead64 instead.
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function BCM2711ARMTimerWait(Timer:PTimerDevice):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Implementation of TimerDeviceWait API for ARM Timer</div>
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{| class="wikitable" style="font-size: 14px; background: white;"
|-
! Note
| Not intended to be called directly by applications, use TimerDeviceWait instead.
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function BCM2711ARMTimerEvent(Timer:PTimerDevice; Flags:LongWord; Callback:TTimerCallback; Data:Pointer):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Implementation of TimerDeviceEvent API for ARM Timer</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! Note
| Not intended to be called directly by applications, use TimerDeviceEvent instead.
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function BCM2711ARMTimerCancel(Timer:PTimerDevice):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Implementation of TimerDeviceCancel API for ARM Timer</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! Note
| Not intended to be called directly by applications, use TimerDeviceCancel instead.
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function BCM2711ARMTimerSetRate(Timer:PTimerDevice; Rate:LongWord):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Implementation of TimerDeviceSetRate API for ARM Timer</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! Note
| Not intended to be called directly by applications, use TimerDeviceSetRate instead.
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function BCM2711ARMTimerSetInterval(Timer:PTimerDevice; Interval:LongWord):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Implementation of TimerDeviceSetInterval API for ARM Timer</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! Note
| Not intended to be called directly by applications, use TimerDeviceSetInterval instead.
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">procedure BCM2711ARMTimerInterruptHandler(Timer:PTimerDevice);</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Interrupt handler for ARM Timer</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! Note
| Not intended to be called directly by applications
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">procedure BCM2711ARMTimerEventTrigger(Timer:PTimerDevice);</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Event handler for ARM Timer</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! Note
| Not intended to be called directly by applications
|-
|}
</div></div>
<br />

'''BCM2711 random functions'''

<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function BCM2711RandomStart(Random:PRandomDevice):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! Note
| None documented
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function BCM2711RandomStop(Random:PRandomDevice):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! Note
| None documented
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function BCM2711RandomReadLongWord(Random:PRandomDevice):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
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! Note
| None documented
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'''BCM2711 watchdog functions'''

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<pre style="border: 0; padding-bottom:0px;">function BCM2711WatchdogStart(Watchdog:PWatchdogDevice):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
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! Note
| None documented
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<pre style="border: 0; padding-bottom:0px;">function BCM2711WatchdogStop(Watchdog:PWatchdogDevice):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
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! Note
| None documented
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<pre style="border: 0; padding-bottom:0px;">function BCM2711WatchdogRefresh(Watchdog:PWatchdogDevice):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
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! Note
| None documented
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<pre style="border: 0; padding-bottom:0px;">function BCM2711WatchdogGetRemain(Watchdog:PWatchdogDevice):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
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! Note
| None documented
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'''BCM2711 framebuffer functions'''

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<pre style="border: 0; padding-bottom:0px;">function BCM2711FramebufferAllocate(Framebuffer:PFramebufferDevice; Properties:PFramebufferProperties):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Implementation of FramebufferDeviceAllocate API for BCM2711 Framebuffer</div>
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! Note
| Not intended to be called directly by applications, use FramebufferDeviceAllocate instead.
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|}
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<pre style="border: 0; padding-bottom:0px;">function BCM2711FramebufferRelease(Framebuffer:PFramebufferDevice):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Implementation of FramebufferDeviceRelease API for BCM2711 Framebuffer</div>
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! Note
| Not intended to be called directly by applications, use FramebufferDeviceRelease instead.
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<pre style="border: 0; padding-bottom:0px;">function BCM2711FramebufferBlank(Framebuffer:PFramebufferDevice; Blank:Boolean):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Implementation of FramebufferDeviceBlank API for BCM2711 Framebuffer</div>
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! Note
| Not intended to be called directly by applications, use FramebufferDeviceBlank instead.
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|}
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<pre style="border: 0; padding-bottom:0px;">function BCM2711FramebufferCommit(Framebuffer:PFramebufferDevice; Address:PtrUInt; Size,Flags:LongWord):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Implementation of FramebufferDeviceCommit API for BCM2711 Framebuffer</div>
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{| class="wikitable" style="font-size: 14px; background: white;"
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! Note
| Not intended to be called directly by applications, use FramebufferDeviceCommit instead.
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|}
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<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function BCM2711FramebufferWaitSync(Framebuffer:PFramebufferDevice):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Implementation of FramebufferDeviceWaitSync API for BCM2711 Framebuffer</div>
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! Note
| Not intended to be called directly by applications, use FramebufferDeviceWaitSync instead.
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|}
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<pre style="border: 0; padding-bottom:0px;">function BCM2711FramebufferSetOffsetEx(Framebuffer:PFramebufferDevice; X,Y:LongWord; Pan,Switch:Boolean):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Implementation of FramebufferDeviceSetOffsetEx API for BCM2711 Framebuffer</div>
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! Note
| Not intended to be called directly by applications, use FramebufferDeviceSetOffsetEx instead.
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|}
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<pre style="border: 0; padding-bottom:0px;">function BCM2711FramebufferGetPalette(Framebuffer:PFramebufferDevice; Palette:PFramebufferPalette):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Implementation of FramebufferDeviceGetPalette API for BCM2711 Framebuffer</div>
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! Note
| Not intended to be called directly by applications, use FramebufferDeviceGetPalette instead.
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<pre style="border: 0; padding-bottom:0px;">function BCM2711FramebufferSetPalette(Framebuffer:PFramebufferDevice; Palette:PFramebufferPalette):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Implementation of FramebufferDeviceSetPalette API for BCM2711 Framebuffer</div>
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{| class="wikitable" style="font-size: 14px; background: white;"
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! Note
| Not intended to be called directly by applications, use FramebufferDeviceSetPalette instead.
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|}
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<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function BCM2711FramebufferSetBacklight(Framebuffer:PFramebufferDevice; Brightness:LongWord):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Implementation of FramebufferDeviceSetBacklight API for BCM2711 Framebuffer</div>
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! Note
| Not intended to be called directly by applications, use FramebufferDeviceSetBacklight instead.
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|}
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<pre style="border: 0; padding-bottom:0px;">function BCM2711FramebufferSetCursor(Framebuffer:PFramebufferDevice; Width,Height,HotspotX,HotspotY:LongWord; Image:Pointer; Len:LongWord):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Implementation of FramebufferDeviceSetCursor API for BCM2711 Framebuffer</div>
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! Note
| Not intended to be called directly by applications, use FramebufferDeviceSetCursor instead.
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|}
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<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function BCM2711FramebufferUpdateCursor(Framebuffer:PFramebufferDevice; Enabled:Boolean; X,Y:LongInt; Relative:Boolean):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Implementation of FramebufferDeviceUpdateCursor API for BCM2711 Framebuffer</div>
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! Note
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'''BCM2711 helper functions'''

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<pre style="border: 0; padding-bottom:0px;">function BCM2711SPIGetDescription(Id:LongWord):String;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Get the device description of an SPI device</div>
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{| class="wikitable" style="font-size: 14px; background: white;"
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! Id
| The Id number of the SPI device (0 to 6)
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! Return
| The correct device description suitable for passing to SPIDeviceFindByDescription
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! Note
| The Id number supplied to this function may differ from the Ultibo device id value.
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|}
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<pre style="border: 0; padding-bottom:0px;">function BCM2711I2CGetDescription(Id:LongWord):String;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Get the device description of an I2C device</div>
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! Id
| The Id number of the I2C device (0 to 7)
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! Return
| The correct device description suitable for passing to I2CDeviceFindByDescription
|-
! Note
| The Id number supplied to this function may differ from the Ultibo device id value.
|-
|}
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<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function BCM2711I2CSlaveGetDescription(Id:LongWord):String;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Get the device description of an I2C slave device</div>
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{| class="wikitable" style="font-size: 14px; background: white;"
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! Id
| The Id number of the I2C slave device (Always 0)
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! Return
| The correct device description suitable for passing to I2CSlaveFindByDescription
|-
! Note
| The Id number supplied to this function may differ from the Ultibo device id value
|-
|}
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<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function BCM2711PWMGetDescription(Id,Channel:LongWord):String;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Get the device description of a PWM device</div>
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{| class="wikitable" style="font-size: 14px; background: white;"
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! Id
| The Id number of the PWM device (0 or 1)
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! Channel
| The channel number of the PWM device (0 or 1)
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! Return
| The correct device description suitable for passing to PWMDeviceFindByDescription
|-
! Note
| The Id number supplied to this function may differ from the Ultibo device id value.
|-
|}
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<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function BCM2711UARTGetDescription(Id:LongWord):String;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Get the device description of a UART device</div>
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{| class="wikitable" style="font-size: 14px; background: white;"
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! Id
| The Id number of the UART device (0 to 5)
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! Return
| The correct device description suitable for passing to UARTDeviceFindByDescription
|-
! Note
| The Id number supplied to this function may differ from the Ultibo device id value.
|-
|}
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