SDIO_ControllerFeatures (changes)
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SDIODriver
» SWI Calls
» SDIO_ControllerFeatures
SDIO_ControllerFeatures
(SWI &59003)
| Entry | |
|---|---|
| R0 | Feature number: |
| Index meaning | |
| 0 = log2 of maximum block length supported for data transfers | |
| R1 | Bits 0-7 = slot number |
| Bits 8-15 = bus number |
| Exit | |
|---|---|
| R2 | Value corresponding to the requested feature |
Re-entrancy
This SWI is re-entrant.
Use
This SWI is used to enable the caller to discover features of the SD controller.
Notes
An error is generated for unknown feature index values.
See also
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