Difference between revisions of "Unit BCM2711"

Revision as of 05:27, 22 June 2021

         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 I2C0/1/3/4/5/6 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 is dedicated to the HDMI interfaces and are not available for use by the ARM processor. 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 Available
                     SCL2                                       Not Available
           
          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 Available
                     SCL7                                       Not Available

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 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, 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.

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

To be documented

Type definitions

To be documented

Public variables

None defined

Function declarations

Initialization functions

procedure BCM2711Init;

Description: To be documented

Note	None documented

BCM2711 SPI0/3/4/5/6 functions

function BCM2711SPI0Start(SPI:PSPIDevice; Mode,ClockRate,ClockPhase,ClockPolarity:LongWord):LongWord;

Description: To be documented

Note	None documented

function BCM2711SPI0Stop(SPI:PSPIDevice):LongWord;

Description: To be documented

Note	None documented

function BCM2711SPI0WriteRead(SPI:PSPIDevice; ChipSelect:Word; Source,Dest:Pointer; Size,Flags:LongWord; var Count:LongWord):LongWord;

Description: To be documented

Note	None documented

function BCM2711SPI0SetMode(SPI:PSPIDevice; Mode:LongWord):LongWord;

Description: To be documented

Note	None documented

function BCM2711SPI0SetClockRate(SPI:PSPIDevice; ChipSelect:Word; ClockRate:LongWord):LongWord;

Description: To be documented

Note	None documented

function BCM2711SPI0SetClockPhase(SPI:PSPIDevice; ClockPhase:LongWord):LongWord;

Description: To be documented

Note	None documented

function BCM2711SPI0SetClockPolarity(SPI:PSPIDevice; ClockPolarity:LongWord):LongWord;

Description: To be documented

Note	None documented

function BCM2711SPI0SetSelectPolarity(SPI:PSPIDevice; ChipSelect:Word; SelectPolarity:LongWord):LongWord;

Description: To be documented

Note	None documented

procedure BCM2711SPI0ReadFIFO(SPI:PBCM2711SPI0Device);

Description: Caller will hold the SPI device lock

Note	Called from within the interrupt handler

procedure BCM2711SPI0WriteFIFO(SPI:PBCM2711SPI0Device);

Description: Caller will hold the SPI device lock

Note	Called from within the interrupt handler

function BCM2711SPI0SharedInterruptHandler(Number,CPUID,Flags:LongWord; SPI:PBCM2711SPI0Device):LongWord;

Description: To be documented

Note	None documented

procedure BCM2711SPI0DMARequestCompleted(Request:PDMARequest);

Description: DMA Request completion callback for SPI0

Note	None documented

procedure BCM2711SPI0GetGPIOConfig(SPI:PBCM2711SPI0Device);

Description: Setup the GPIO config for the supplied SPI0 device

Note	None documented

BCM2711 I2C0/1/3/4/5/6 functions

function BCM2711I2C0Start(I2C:PI2CDevice; Rate:LongWord):LongWord;

Description: To be documented

Note	None documented

function BCM2711I2C0Stop(I2C:PI2CDevice):LongWord;

Description: To be documented

Note	None documented

function BCM2711I2C0Read(I2C:PI2CDevice; Address:Word; Buffer:Pointer; Size:LongWord; var Count:LongWord):LongWord;

Description: To be documented

Note	None documented

function BCM2711I2C0Write(I2C:PI2CDevice; Address:Word; Buffer:Pointer; Size:LongWord; var Count:LongWord):LongWord;

Description: To be documented

Note	None documented

function BCM2711I2C0WriteRead(I2C:PI2CDevice; Address:Word; Initial:Pointer; Len:LongWord; Data:Pointer; Size:LongWord; var Count:LongWord):LongWord;

Description: To be documented

Note	None documented

function BCM2711I2C0WriteWrite(I2C:PI2CDevice; Address:Word; Initial:Pointer; Len:LongWord; Data:Pointer; Size:LongWord; var Count:LongWord):LongWord;

Description: To be documented

Note	None documented

function BCM2711I2C0SetRate(I2C:PI2CDevice; Rate:LongWord):LongWord;

Description: To be documented

Note	None documented

function BCM2711I2C0SetAddress(I2C:PI2CDevice; Address:Word):LongWord;

Description: To be documented

Note	None documented

procedure BCM2711I2C0FillFIFO(I2C:PBCM2711I2C0Device);

Description: Caller will hold the I2C device lock

Note	Called from within the interrupt handler

procedure BCM2711I2C0DrainFIFO(I2C:PBCM2711I2C0Device);

Description: Caller will hold the I2C device lock

Note	Called from within the interrupt handler

function BCM2711I2C0SharedInterruptHandler(Number,CPUID,Flags:LongWord; I2C:PBCM2711I2C0Device):LongWord;

Description: To be documented

Note	Thread submitting the current request will hold the I2C device lock

procedure BCM2711I2C0GetGPIOConfig(I2C:PBCM2711I2C0Device);

Description: Setup the GPIO config for the supplied I2C0 device

Note	None documented

BCM2711 DMA functions

function BCM2711DMAHostStart(DMA:PDMAHost):LongWord;

Description: To be documented

Note	None documented

function BCM2711DMAHostStop(DMA:PDMAHost):LongWord;

Description: To be documented

Note	None documented

function BCM2711DMAHostSubmit(DMA:PDMAHost; Request:PDMARequest):LongWord;

Description: To be documented

Note	None documented

function BCM2711DMAHostCancel(DMA:PDMAHost; Request:PDMARequest):LongWord;

Description: To be documented

Note	None documented

procedure BCM2711DMAInterruptHandler(Channel:PBCM2711DMAChannel);

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

Note	None documented

procedure BCM2711DMA40InterruptHandler(Channel:PBCM2711DMAChannel);

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

Note	None documented

procedure BCM2711DMASharedInterruptHandler(DMA:PBCM2711DMAHost);

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

Note	None documented

procedure BCM2711DMARequestComplete(Channel:PBCM2711DMAChannel);

Description: To be documented

Note	None documented

function BCM2711DMAPeripheralToDREQ(Peripheral:LongWord):LongWord;

Description: To be documented

Note	None documented

procedure BCM2711DMADataToControlBlock(Request:PDMARequest; Data:PDMAData; Block:PBCM2838DMAControlBlock; Bulk,Lite:Boolean);

Description: To be documented

Note	None documented

procedure BCM2711DMA40DataToControlBlock(Request:PDMARequest; Data:PDMAData; Block:PBCM2838DMA40ControlBlock);

Description: To be documented

Note	None documented

BCM2711 PWM0/1 functions'

function BCM2711PWM0Start(PWM:PPWMDevice):LongWord;

Description: To be documented

Note	None documented

function BCM2711PWM0Stop(PWM:PPWMDevice):LongWord;

Description: To be documented

Note	None documented

function BCM2711PWM0Write(PWM:PPWMDevice; Value:LongWord):LongWord;

Description: To be documented

Note	None documented

function BCM2711PWM0SetGPIO(PWM:PPWMDevice; GPIO:LongWord):LongWord;

Description: To be documented

Note	None documented

function BCM2711PWM0ResetGPIO(PWM:PPWMDevice; GPIO:LongWord):LongWord;

Description: To be documented

Note	None documented

function BCM2711PWM0SetMode(PWM:PPWMDevice; Mode:LongWord):LongWord;

Description: To be documented

Note	None documented

function BCM2711PWM0SetRange(PWM:PPWMDevice; Range:LongWord):LongWord;

Description: To be documented

Note	None documented

function BCM2711PWM0SetFrequency(PWM:PPWMDevice; Frequency:LongWord):LongWord;

Description: To be documented

Note	None documented

function BCM2711PWM0SetPolarity(PWM:PPWMDevice; Polarity:LongWord):LongWord;

Description: To be documented

Note	None documented

function BCM2711PWM0Configure(PWM:PPWMDevice; DutyNS,PeriodNS:LongWord):LongWord;

Description: To be documented

Note	None documented

function BCM2711PWM0ClockStart(PWM:PPWMDevice; Frequency:LongWord):LongWord;

Description: To be documented

Note	None documented

function BCM2711PWM0ClockStop(PWM:PPWMDevice):LongWord;

Description: To be documented

Note	None documented

function BCM2711PWM0ClockEnabled(PWM:PPWMDevice):Boolean;

Description: To be documented

Note	None documented

BCM2711 GPIO functions

function BCM2711GPIOStart(GPIO:PGPIODevice):LongWord;

Description: To be documented

Note	None documented

function BCM2711GPIOStop(GPIO:PGPIODevice):LongWord;

Description: To be documented

Note	None documented

function BCM2711GPIORead(GPIO:PGPIODevice; Reg:LongWord):LongWord;

Description: To be documented

Note	None documented

procedure BCM2711GPIOWrite(GPIO:PGPIODevice; Reg,Value:LongWord);

Description: To be documented

Note	None documented

function BCM2711GPIOInputGet(GPIO:PGPIODevice; Pin:LongWord):LongWord;

Description: To be documented

Note	None documented

function BCM2711GPIOInputWait(GPIO:PGPIODevice; Pin,Trigger,Timeout:LongWord):LongWord;

Description: To be documented

Note	None documented

function BCM2711GPIOInputEvent(GPIO:PGPIODevice; Pin,Trigger,Flags,Timeout:LongWord; Callback:TGPIOCallback; Data:Pointer):LongWord;

Description: To be documented

Note	None documented

function BCM2711GPIOInputCancel(GPIO:PGPIODevice; Pin:LongWord):LongWord;

Description: To be documented

Note	None documented

function BCM2711GPIOOutputSet(GPIO:PGPIODevice; Pin,Level:LongWord):LongWord;

Description: To be documented

Note	None documented

function BCM2711GPIOPullGet(GPIO:PGPIODevice; Pin:LongWord):LongWord;

Description: To be documented

Note	None documented

function BCM2711GPIOPullSelect(GPIO:PGPIODevice; Pin,Mode:LongWord):LongWord;

Description: To be documented

Note	None documented

function BCM2711GPIOFunctionGet(GPIO:PGPIODevice; Pin:LongWord):LongWord;

Description: To be documented

Note	None documented

function BCM2711GPIOFunctionSelect(GPIO:PGPIODevice; Pin,Mode:LongWord):LongWord;

Description: To be documented

Note	None documented

procedure BCM2711GPIOInterruptHandler(Bank:PBCM2711GPIOBank);

Description: To be documented

Note	None documented

procedure BCM2711GPIOEventTrigger(Pin:PGPIOPin);

Description: To be documented

Note	None documented

procedure BCM2711GPIOEventTimeout(Event:PGPIOEvent);

Description: To be documented

Note	None documented

BCM2711 UART0/2/3/4/5 functions

function BCM2711UART0Open(UART:PUARTDevice; BaudRate,DataBits,StopBits,Parity,FlowControl:LongWord):LongWord;

Description: Implementation of UARTDeviceOpen API for BCM2711 UART0

Note	Not intended to be called directly by applications, use UARTDeviceOpen instead.

function BCM2711UART0Close(UART:PUARTDevice):LongWord;

Description: Implementation of UARTDeviceClose API for BCM2711 UART0

Note	Not intended to be called directly by applications, use UARTDeviceClose instead.

function BCM2711UART0Read(UART:PUARTDevice; Buffer:Pointer; Size,Flags:LongWord; var Count:LongWord):LongWord;

Description: Implementation of UARTDeviceRead API for BCM2711 UART0

Note	Not intended to be called directly by applications, use UARTDeviceRead instead.

function BCM2711UART0Write(UART:PUARTDevice; Buffer:Pointer; Size,Flags:LongWord; var Count:LongWord):LongWord;

Description: Implementation of UARTDeviceWrite API for BCM2711 UART0

Note	Not intended to be called directly by applications, use UARTDeviceWrite instead.

function BCM2711UART0GetStatus(UART:PUARTDevice):LongWord;

Description: Implementation of UARTDeviceGetStatus API for BCM2711 UART0

Note	Not intended to be called directly by applications, use UARTDeviceGetStatus instead.

function BCM2711UART0SetStatus(UART:PUARTDevice; Status:LongWord):LongWord;

Description: Implementation of UARTDeviceSetStatus API for BCM2711 UART0

Note	Not intended to be called directly by applications, use UARTDeviceSetStatus instead.

function BCM2711UART0SharedInterruptHandler(Number,CPUID,Flags:LongWord; UART:PUARTDevice):LongWord;

Description: Interrupt handler for the BCM2711 UART0 device

Note	Not intended to be called directly by applications

procedure BCM2711UART0Receive(UART:PUARTDevice);

Description: Receive handler for the BCM2711 UART0 device

Note	Not intended to be called directly by applications

procedure BCM2711UART0Transmit(UART:PUARTDevice);

Description: Transmit handler for the BCM2711 UART0 device

Note	Not intended to be called directly by applications

procedure BCM2711UART0EnableInterrupt(UART:PBCM2711UART0Device; Interrupt:LongWord);

Description: Enable the specified interrupt in the interrupt mask register of a BCM2711 UART0 device

UART	The BCM2711 UART0 device to enable the interrupt for
Interrupt	The interrupt to enable
Note	Caller must hold the UART lock

procedure BCM2711UART0DisableInterrupt(UART:PBCM2711UART0Device; Interrupt:LongWord);

Description: Disable the specified interrupt in the interrupt mask register of a BCM2711 UART0 device

UART	The BCM2711 UART0 device to disable the interrupt for
Interrupt	The interrupt to disable
Note	Caller must hold the UART lock

procedure BCM2711UART0GetGPIOConfig(UART:PBCM2711UART0Device);

Description: Setup the GPIO config for the supplied UART0 device

Note	None documented

BCM2711 EMMC0 (SDHCI) functions

function BCM2711EMMC0HostStart(SDHCI:PSDHCIHost):LongWord;

Description: To be documented

Note	None documented

function BCM2711EMMC0HostStop(SDHCI:PSDHCIHost):LongWord;

Description: To be documented

Note	None documented

function BCM2711EMMC0HostReadByte(SDHCI:PSDHCIHost; Reg:LongWord):Byte;

Description: To be documented

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.

function BCM2711EMMC0HostReadWord(SDHCI:PSDHCIHost; Reg:LongWord):Word;

Description: To be documented

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.

function BCM2711EMMC0HostReadLong(SDHCI:PSDHCIHost; Reg:LongWord):LongWord;

Description: To be documented

Note	None documented

procedure BCM2711EMMC0HostWriteByte(SDHCI:PSDHCIHost; Reg:LongWord; Value:Byte);

Description: To be documented

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.

procedure BCM2711EMMC0HostWriteWord(SDHCI:PSDHCIHost; Reg:LongWord; Value:Word);

Description: To be documented

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.

procedure BCM2711EMMC0HostWriteLong(SDHCI:PSDHCIHost; Reg:LongWord; Value:LongWord);

Description: To be documented

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.

function BCM2711EMMC0SharedInterruptHandler(Number,CPUID,Flags:LongWord; SDHCI:PSDHCIHost):LongWord;

Description: Interrupt handler for the EMMC0 (SDHCI) host controller

Note	Not intended to be called directly by applications

function BCM2711EMMC0SetupInterrupts(SDHCI:PSDHCIHost):LongWord;

Description: To be documented

Note	None documented

function BCM2711EMMC0DeviceGetCardDetect(MMC:PMMCDevice):LongWord;

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

Note	None documented

BCM2711 system clock functions

function BCM2711SystemClockRead(Clock:PClockDevice):LongWord;

Description: Implementation of ClockDeviceRead API for System Clock

Note	Not intended to be called directly by applications, use ClockDeviceRead instead.

function BCM2711SystemClockRead64(Clock:PClockDevice):Int64;

Description: Implementation of ClockDeviceRead64 API for System Clock

Note	Not intended to be called directly by applications, use ClockDeviceRead64 instead.

BCM2711 ARM clock functions

function BCM2711ARMClockStart(Clock:PClockDevice):LongWord;

Description: Implementation of ClockDeviceStart API for ARM Clock

Note	Not intended to be called directly by applications, use ClockDeviceStart instead.

function BCM2711ARMClockStop(Clock:PClockDevice):LongWord;

Description: Implementation of ClockDeviceStop API for ARM Clock

Note	Not intended to be called directly by applications, use ClockDeviceStop instead.

function BCM2711ARMClockRead(Clock:PClockDevice):LongWord;

Description: Implementation of ClockDeviceRead API for ARM Clock

Note	Not intended to be called directly by applications, use ClockDeviceRead instead.

function BCM2711ARMClockRead64(Clock:PClockDevice):Int64;

Description: Implementation of ClockDeviceRead64 API for ARM Clock

Note	Not intended to be called directly by applications, use ClockDeviceRead64 instead.

function BCM2711ARMClockSetRate(Clock:PClockDevice; Rate:LongWord):LongWord;

Description: Implementation of ClockDeviceSetRate API for ARM Clock

Note	Not intended to be called directly by applications, use ClockDeviceSetRate instead.

BCM2711 ARM timer functions

function BCM2711ARMTimerStart(Timer:PTimerDevice):LongWord;

Description: Implementation of TimerDeviceStart API for ARM Timer

Note	Not intended to be called directly by applications, use TimerDeviceStart instead.

function BCM2711ARMTimerStop(Timer:PTimerDevice):LongWord;

Description: Implementation of TimerDeviceStop API for ARM Timer

Note	Not intended to be called directly by applications, use TimerDeviceStop instead.

function BCM2711ARMTimerRead64(Timer:PTimerDevice):Int64;

Description: Implementation of TimerDeviceRead64 API for ARM Timer

Note	Not intended to be called directly by applications, use TimerDeviceRead64 instead.

function BCM2711ARMTimerWait(Timer:PTimerDevice):LongWord;

Description: Implementation of TimerDeviceWait API for ARM Timer

Note	Not intended to be called directly by applications, use TimerDeviceWait instead.

function BCM2711ARMTimerEvent(Timer:PTimerDevice; Flags:LongWord; Callback:TTimerCallback; Data:Pointer):LongWord;

Description: Implementation of TimerDeviceEvent API for ARM Timer

Note	Not intended to be called directly by applications, use TimerDeviceEvent instead.

function BCM2711ARMTimerCancel(Timer:PTimerDevice):LongWord;

Description: Implementation of TimerDeviceCancel API for ARM Timer

Note	Not intended to be called directly by applications, use TimerDeviceCancel instead.

function BCM2711ARMTimerSetRate(Timer:PTimerDevice; Rate:LongWord):LongWord;

Description: Implementation of TimerDeviceSetRate API for ARM Timer

Note	Not intended to be called directly by applications, use TimerDeviceSetRate instead.

function BCM2711ARMTimerSetInterval(Timer:PTimerDevice; Interval:LongWord):LongWord;

Description: Implementation of TimerDeviceSetInterval API for ARM Timer

Note	Not intended to be called directly by applications, use TimerDeviceSetInterval instead.

procedure BCM2711ARMTimerInterruptHandler(Timer:PTimerDevice);

Description: Interrupt handler for ARM Timer

Note	Not intended to be called directly by applications

procedure BCM2711ARMTimerEventTrigger(Timer:PTimerDevice);

Description: Event handler for ARM Timer

Note	Not intended to be called directly by applications

BCM2711 random functions

function BCM2711RandomStart(Random:PRandomDevice):LongWord;

Description: To be documented

Note	None documented

function BCM2711RandomStop(Random:PRandomDevice):LongWord;

Description: To be documented

Note	None documented

function BCM2711RandomReadLongWord(Random:PRandomDevice):LongWord;

Description: To be documented

Note	None documented

BCM2711 watchdog functions

function BCM2711WatchdogStart(Watchdog:PWatchdogDevice):LongWord;

Description: To be documented

Note	None documented

function BCM2711WatchdogStop(Watchdog:PWatchdogDevice):LongWord;

Description: To be documented

Note	None documented

function BCM2711WatchdogRefresh(Watchdog:PWatchdogDevice):LongWord;

Description: To be documented

Note	None documented

function BCM2711WatchdogGetRemain(Watchdog:PWatchdogDevice):LongWord;

Description: To be documented

Note	None documented

BCM2711 framebuffer functions

function BCM2711FramebufferAllocate(Framebuffer:PFramebufferDevice; Properties:PFramebufferProperties):LongWord;

Description: Implementation of FramebufferDeviceAllocate API for BCM2711 Framebuffer

Note	Not intended to be called directly by applications, use FramebufferDeviceAllocate instead.

function BCM2711FramebufferRelease(Framebuffer:PFramebufferDevice):LongWord;

Description: Implementation of FramebufferDeviceRelease API for BCM2711 Framebuffer

Note	Not intended to be called directly by applications, use FramebufferDeviceRelease instead.

function BCM2711FramebufferBlank(Framebuffer:PFramebufferDevice; Blank:Boolean):LongWord;

Description: Implementation of FramebufferDeviceBlank API for BCM2711 Framebuffer

Note	Not intended to be called directly by applications, use FramebufferDeviceBlank instead.

function BCM2711FramebufferCommit(Framebuffer:PFramebufferDevice; Address:PtrUInt; Size,Flags:LongWord):LongWord;

Description: Implementation of FramebufferDeviceCommit API for BCM2711 Framebuffer

Note	Not intended to be called directly by applications, use FramebufferDeviceCommit instead.

function BCM2711FramebufferWaitSync(Framebuffer:PFramebufferDevice):LongWord;

Description: Implementation of FramebufferDeviceWaitSync API for BCM2711 Framebuffer

Note	Not intended to be called directly by applications, use FramebufferDeviceWaitSync instead.

function BCM2711FramebufferSetOffset(Framebuffer:PFramebufferDevice; X,Y:LongWord; Pan:Boolean):LongWord;

Description: Implementation of FramebufferDeviceSetOffset API for BCM2711 Framebuffer

Note	Not intended to be called directly by applications, use FramebufferDeviceSetOffset instead.

function BCM2711FramebufferGetPalette(Framebuffer:PFramebufferDevice; Palette:PFramebufferPalette):LongWord;

Description: Implementation of FramebufferDeviceGetPalette API for BCM2711 Framebuffer

Note	Not intended to be called directly by applications, use FramebufferDeviceGetPalette instead

function BCM2711FramebufferSetPalette(Framebuffer:PFramebufferDevice; Palette:PFramebufferPalette):LongWord;

Description: Implementation of FramebufferDeviceSetPalette API for BCM2711 Framebuffer

Note	Not intended to be called directly by applications, use FramebufferDeviceSetPalette instead.

function BCM2711FramebufferSetBacklight(Framebuffer:PFramebufferDevice; Brightness:LongWord):LongWord;

Description: Implementation of FramebufferDeviceSetBacklight API for BCM2711 Framebuffer

Note	Not intended to be called directly by applications, use FramebufferDeviceSetBacklight instead.

function BCM2711FramebufferSetCursor(Framebuffer:PFramebufferDevice; Width,Height,HotspotX,HotspotY:LongWord; Image:Pointer; Len:LongWord):LongWord;

Description: Implementation of FramebufferDeviceSetCursor API for BCM2711 Framebuffer

Note	Not intended to be called directly by applications, use FramebufferDeviceSetCursor instead

function BCM2711FramebufferUpdateCursor(Framebuffer:PFramebufferDevice; Enabled:Boolean; X,Y:LongInt; Relative:Boolean):LongWord;

Description: Implementation of FramebufferDeviceUpdateCursor API for BCM2711 Framebuffer

Note	Not intended to be called directly by applications, use FramebufferDeviceUpdateCursor instead.

function BCM2711FramebufferSetProperties(Framebuffer:PFramebufferDevice; Properties:PFramebufferProperties):LongWord;

Description: Implementation of FramebufferDeviceSetProperties API for BCM2711 Framebuffer

Note	Not intended to be called directly by applications, use FramebufferDeviceSetProperties instead.

BCM2711 helper functions

function BCM2711GetSPIDescription(Id:LongWord):String;

Description: Return the device description of an SPI device

Id	The Id number of the SPI device as shown in the offical documentation
Return	The correct device description suitable for passing to SPIDeviceFindByDescription

function BCM2711GetI2CDescription(Id:LongWord):String;

Description: Return the device description of an I2C device

Id	The Id number of the I2C device as shown in the offical documentation
Return	The correct device description suitable for passing to I2CDeviceFindByDescription

function BCM2711GetPWMDescription(Id,Channel:LongWord):String;

Description: Return the device description of an PWM device

Id	The Id number of the PWM device as shown in the offical documentation
Channel	The channel number of the PWM device (0 or 1)
Return	The correct device description suitable for passing to PWMDeviceFindByDescription

function BCM2711GetUARTDescription(Id:LongWord):String;

Description: Return the device description of a UART device

Id	The Id number of the UART device as shown in the offical documentation
Return	The correct device description suitable for passing to UARTDeviceFindByDescription

Return to Unit Reference

Difference between revisions of "Unit BCM2711"

Revision as of 05:27, 22 June 2021

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@@ Line 378: / Line 378: @@
 ----
-''To be documented''
+'''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;"
+|-
+! 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 BCM2711SPI0SetClockPolarity(SPI:PSPIDevice; 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 BCM2711SPI0SetSelectPolarity(SPI:PSPIDevice; ChipSelect:Word; SelectPolarity: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;">procedure BCM2711SPI0ReadFIFO(SPI:PBCM2711SPI0Device);</pre>
+<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Caller will hold the SPI device lock</div>
+<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
+{| class="wikitable" style="font-size: 14px; background: white;"
+|-
+! Note
+| Called from within the interrupt handler
+|-
+|}
+</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 BCM2711SPI0WriteFIFO(SPI:PBCM2711SPI0Device);</pre>
+<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Caller will hold the SPI device lock</div>
+<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
+{| class="wikitable" style="font-size: 14px; background: white;"
+|-
+! Note
+| Called from within the interrupt handler
+|-
+|}
+</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 BCM2711SPI0SharedInterruptHandler(Number,CPUID,Flags:LongWord; SPI:PBCM2711SPI0Device):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;">procedure BCM2711SPI0DMARequestCompleted(Request:PDMARequest);</pre>
+<div style="font-size: 14px; padding-left: 12px;">'''Description:''' DMA Request completion callback for SPI0</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;">procedure BCM2711SPI0GetGPIOConfig(SPI:PBCM2711SPI0Device);</pre>
+<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Setup the GPIO config for the supplied SPI0 device</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 I2C0/1/3/4/5/6 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 BCM2711I2C0Start(I2C:PI2CDevice; Rate: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 BCM2711I2C0Stop(I2C:PI2CDevice):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 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>
+<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 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>
+<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 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>
+<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 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>
+<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 BCM2711I2C0SetRate(I2C:PI2CDevice; Rate: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 BCM2711I2C0SetAddress(I2C:PI2CDevice; Address:Word):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;">procedure BCM2711I2C0FillFIFO(I2C:PBCM2711I2C0Device);</pre>
+<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Caller will hold the I2C device lock</div>
+<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
+{| class="wikitable" style="font-size: 14px; background: white;"
+|-
+! Note
+| Called from within the interrupt handler
+|-
+|}
+</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 BCM2711I2C0DrainFIFO(I2C:PBCM2711I2C0Device);</pre>
+<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Caller will hold the I2C device lock</div>
+<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
+{| class="wikitable" style="font-size: 14px; background: white;"
+|-
+! Note
+| Called from within the interrupt handler
+|-
+|}
+</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 BCM2711I2C0SharedInterruptHandler(Number,CPUID,Flags:LongWord; I2C:PBCM2711I2C0Device):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
+| Thread submitting the current request will hold the I2C device 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 BCM2711I2C0GetGPIOConfig(I2C:PBCM2711I2C0Device);</pre>
+<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Setup the GPIO config for the supplied I2C0 device</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 DMA 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 BCM2711DMAHostStart(DMA:PDMAHost):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 BCM2711DMAHostStop(DMA:PDMAHost):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 BCM2711DMAHostSubmit(DMA:PDMAHost; Request:PDMARequest):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 BCM2711DMAHostCancel(DMA:PDMAHost; Request:PDMARequest):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;">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>
+<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;">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 />
+<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 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 />
+<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 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 />
+<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 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 />
+<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 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 />
+<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 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'''
+<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 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 />
+<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 BCM2711PWM0Write(PWM:PPWMDevice; Value: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 BCM2711PWM0SetGPIO(PWM:PPWMDevice; GPIO: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 BCM2711PWM0ResetGPIO(PWM:PPWMDevice; GPIO: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 BCM2711PWM0SetMode(PWM:PPWMDevice; 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 BCM2711PWM0SetRange(PWM:PPWMDevice; Range: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 BCM2711PWM0SetFrequency(PWM:PPWMDevice; Frequency: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 BCM2711PWM0SetPolarity(PWM:PPWMDevice; Polarity: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 BCM2711PWM0Configure(PWM:PPWMDevice; DutyNS,PeriodNS: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 BCM2711PWM0ClockStart(PWM:PPWMDevice; Frequency: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 BCM2711PWM0ClockStop(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 BCM2711PWM0ClockEnabled(PWM:PPWMDevice):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 />
+'''BCM2711 GPIO 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 BCM2711GPIOStart(GPIO:PGPIODevice):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 BCM2711GPIOStop(GPIO:PGPIODevice):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 BCM2711GPIORead(GPIO:PGPIODevice; Reg: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;">procedure BCM2711GPIOWrite(GPIO:PGPIODevice; Reg,Value: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 BCM2711GPIOInputGet(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;"
+|-
+! 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 BCM2711GPIOInputWait(GPIO:PGPIODevice; Pin,Trigger,Timeout: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 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>
+<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 BCM2711GPIOInputCancel(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;"
+|-
+! 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>
+<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 BCM2711GPIOPullGet(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;"
+|-
+! 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 BCM2711GPIOPullSelect(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;"
+|-
+! 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 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;"
+|-
+! 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 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;"
+|-
+! 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;"
+|-
+! 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>
+<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;">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;"
+|-
+! 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>
+<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 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:''' 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 BCM2711EMMC0HostStop(SDHCI:PSDHCIHost):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 BCM2711EMMC0HostReadByte(SDHCI:PSDHCIHost; Reg:LongWord):Byte;</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
+| 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:''' 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
+| 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:''' 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;">procedure BCM2711EMMC0HostWriteByte(SDHCI:PSDHCIHost; Reg:LongWord; Value:Byte);</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
+| 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:''' 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
+| 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:''' 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
+| 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 EMMC0 (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:''' 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 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>
+<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 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>
+<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 />
+'''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>
+<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 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>
+<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 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>
+<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 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>
+<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 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>
+<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 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>
+<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 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>
+<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 watchdog 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 BCM2711WatchdogStart(Watchdog:PWatchdogDevice):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 BCM2711WatchdogStop(Watchdog:PWatchdogDevice):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 BCM2711WatchdogRefresh(Watchdog:PWatchdogDevice):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 BCM2711WatchdogGetRemain(Watchdog:PWatchdogDevice):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 />
+'''BCM2711 framebuffer 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 BCM2711FramebufferAllocate(Framebuffer:PFramebufferDevice; Properties:PFramebufferProperties):LongWord;</pre>
+<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Implementation of FramebufferDeviceAllocate API for BCM2711 Framebuffer</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 FramebufferDeviceAllocate 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 BCM2711FramebufferRelease(Framebuffer:PFramebufferDevice):LongWord;</pre>
+<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Implementation of FramebufferDeviceRelease API for BCM2711 Framebuffer</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 FramebufferDeviceRelease 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 BCM2711FramebufferBlank(Framebuffer:PFramebufferDevice; Blank:Boolean):LongWord;</pre>
+<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Implementation of FramebufferDeviceBlank API for BCM2711 Framebuffer</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 FramebufferDeviceBlank 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 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>
+<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 FramebufferDeviceCommit 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 BCM2711FramebufferWaitSync(Framebuffer:PFramebufferDevice):LongWord;</pre>
+<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Implementation of FramebufferDeviceWaitSync API for BCM2711 Framebuffer</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 FramebufferDeviceWaitSync 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 BCM2711FramebufferSetOffset(Framebuffer:PFramebufferDevice; X,Y:LongWord; Pan:Boolean):LongWord;</pre>
+<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Implementation of FramebufferDeviceSetOffset API for BCM2711 Framebuffer</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 FramebufferDeviceSetOffset 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 BCM2711FramebufferGetPalette(Framebuffer:PFramebufferDevice; Palette:PFramebufferPalette):LongWord;</pre>
+<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Implementation of FramebufferDeviceGetPalette API for BCM2711 Framebuffer</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 FramebufferDeviceGetPalette 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 BCM2711FramebufferSetPalette(Framebuffer:PFramebufferDevice; Palette:PFramebufferPalette):LongWord;</pre>
+<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Implementation of FramebufferDeviceSetPalette API for BCM2711 Framebuffer</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 FramebufferDeviceSetPalette 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 BCM2711FramebufferSetBacklight(Framebuffer:PFramebufferDevice; Brightness:LongWord):LongWord;</pre>
+<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Implementation of FramebufferDeviceSetBacklight API for BCM2711 Framebuffer</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 FramebufferDeviceSetBacklight 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 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>
+<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 FramebufferDeviceSetCursor 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 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>
+<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 FramebufferDeviceUpdateCursor 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 BCM2711FramebufferSetProperties(Framebuffer:PFramebufferDevice; Properties:PFramebufferProperties):LongWord;</pre>
+<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Implementation of FramebufferDeviceSetProperties API for BCM2711 Framebuffer</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 FramebufferDeviceSetProperties instead.
+|-
+|}
+</div></div>
+<br />
+'''BCM2711 helper 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 BCM2711GetSPIDescription(Id:LongWord):String;</pre>
+<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Return the device description of an SPI device</div>
+<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
+{| class="wikitable" style="font-size: 14px; background: white;"
+|-
+! Id
+| The Id number of the SPI device as shown in the offical documentation
+|-
+! Return
+| The correct device description suitable for passing to SPIDeviceFindByDescription
+|-
+|}
+</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 BCM2711GetI2CDescription(Id:LongWord):String;</pre>
+<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Return the device description of an I2C device</div>
+<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
+{| class="wikitable" style="font-size: 14px; background: white;"
+|-
+! Id
+| The Id number of the I2C device as shown in the offical documentation
+|-
+! Return
+| The correct device description suitable for passing to I2CDeviceFindByDescription
+|-
+|}
+</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 BCM2711GetPWMDescription(Id,Channel:LongWord):String;</pre>
+<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Return the device description of an PWM device</div>
+<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
+{| class="wikitable" style="font-size: 14px; background: white;"
+|-
+! Id
+| The Id number of the PWM device as shown in the offical documentation
+|-
+! Channel
+| The channel number of the PWM device (0 or 1)
+|-
+! Return
+| The correct device description suitable for passing to PWMDeviceFindByDescription
+|-
+|}
+</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 BCM2711GetUARTDescription(Id:LongWord):String;</pre>
+<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Return the device description of a UART device</div>
+<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
+{| class="wikitable" style="font-size: 14px; background: white;"
+|-
+! Id
+| The Id number of the UART device as shown in the offical documentation
+|-
+! Return
+| The correct device description suitable for passing to UARTDeviceFindByDescription
+|-
+|}
+</div></div>
+<br />
 Return to [[Unit_Reference|Unit Reference]]