SD_COMMAND_CLASS enumeration (sddef.h)
The SD_COMMAND_CLASS enumeration lists the classes of Secure Digital (SD) card commands.
Syntax
typedef enum {
SDCC_STANDARD,
SDCC_APP_CMD
} SD_COMMAND_CLASS;
Constants
SDCC_STANDARD Indicates an SD card command from the standard command set. This command set includes command codes 0 to 63. |
SDCC_APP_CMD Indicates an SD command from the application command set. This command set includes command codes 0 to 63, preceded by the application command escape code 55. SD card drivers should not issue CMD55 (APP_CMD) commands through the SD bus interface. The bus driver will automatically issue the CMD55 command on behalf of the SD card driver when the command class is SDCC_APP_CMD. |
Requirements
Requirement | Value |
---|---|
Header | sddef.h (include Sddef.h) |