Difference between revisions of "Unit PL18X"
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| + | '''PL18X specific variables''' | ||
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| + | {| class="wikitable" style="font-size: 14px; text-align: left; width: 100%; height: 50px;" | ||
| + | |- | ||
| + | | <code>PL18X_MMCI_FIQ_ENABLED:LongBool;</code> | ||
| + | | style="width: 40%;"|The SDHCI uses Fast Interrupt Requests (FIQ) instead of IRQ | ||
| + | |- | ||
| + | |} | ||
| + | {| class="wikitable" style="font-size: 14px; text-align: left; width: 100%; height: 50px;" | ||
| + | |- | ||
| + | | <code>PL18X_MMCI_MIN_FREQ:LongWord = 400000;</code> | ||
| + | | style="width: 40%;"|Minimum clock frequency for SDHCI (Default minimum of 400KHz) | ||
| + | |- | ||
| + | |} | ||
| + | {| class="wikitable" style="font-size: 14px; text-align: left; width: 100%; height: 50px;" | ||
| + | |- | ||
| + | | <code>PL18X_MMCI_MAX_FREQ:LongWord = 400000;</code> | ||
| + | | style="width: 40%;"|Maximum clock frequency for SDHCI (Default maximum of 400KHz) | ||
| + | |- | ||
| + | |} | ||
| + | <br /> | ||
=== Function declarations === | === Function declarations === | ||
Revision as of 04:18, 13 June 2017
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Description
ARM PrimeCell PL180/181 Multimedia Card Interface Driver unit
The PL180/181 Multimedia Card is an ARM peripheral that is compatible with MMC multimedia cards and SD secure digital cards in memory mapped I/O format compatible with the ARM advanced peripheral bus (APB).
The design of the Pl180/181 allows for multiple cards per controller however this driver currently only supports attaching one card.
Constants
To be documented
Type definitions
To be documented
Public variables
PL18X specific variables
PL18X_MMCI_FIQ_ENABLED:LongBool;
|
The SDHCI uses Fast Interrupt Requests (FIQ) instead of IRQ |
PL18X_MMCI_MIN_FREQ:LongWord = 400000;
|
Minimum clock frequency for SDHCI (Default minimum of 400KHz) |
PL18X_MMCI_MAX_FREQ:LongWord = 400000;
|
Maximum clock frequency for SDHCI (Default maximum of 400KHz) |
Function declarations
To be documented
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