Manual

781
6264A–CAP–21-May-07
AT91CAP9S500A/AT91CAP9S250A
1 = 64-cycle max latency
• TRCMD: Transfer Command
• TRDIR: Transfer Direction
0 = Write
1 = Read
• TRTYP: Transfer Type
• IOSPCMD: SDIO Special Command
TRCMD Transfer Type
0 0 No data transfer
0 1 Start data transfer
1 0 Stop data transfer
11Reserved
TRTYP Transfer Type
0 0 0 MMC/SDCard Single Block
0 0 1 MMC/SDCard Multiple Block
010MMC Stream
0 1 1 Reserved
1 0 0 SDIO Byte
101SDIO Block
1 1 0 Reserved
1 1 1 Reserved
IOSPCMD SDIO Special Command Type
0 0 Not a SDIO Special Command
0 1 SDIO Suspend Command
1 0 SDIO Resume Command
11Reserved