Memory Card Specification Sheet

©Copyright 2000-2007 SD Card Association
SDIO Simplified Specification Version 2.00
60
Supported
Commands
Abbreviation
SDMEM
System
SDIO
System
Comments
CMD0 GO_IDLE_STATE Mandatory Mandatory Used to change from SD to SPI mode
CMD1 SEND_OP_COND Mandatory
CMD5 IO_SEND_OP_COND Mandatory
CMD6 SWITCH_FUNC Mandatory
1
Mandatory
1
A
dded in Part 1 v1.10
CMD9 SEND_CSD Mandatory CSD not supported by SDIO
CMD10 SEND_CID Mandatory CID not supported by SDIO
CMD12 STOP_TRANSMISSION Mandatory
CMD13 SEND_STATUS Mandatory Card Status includes only SDMEM information.
CMD16 SET_BLOCKLEN Mandatory
CMD17 READ_SINGLE_BLOCK Mandatory .
CMD18 READ_MULTIPLE_BLOCK Mandatory
CMD24 WRITE_BLOCK Mandatory
CMD25 WRITE_MULTIPLE_BLOCK Mandatory
CMD27 PROGRAM_CSD Mandatory CSD not supported by SDIO.
CMD28 SET_WRITE_PROT Optional
CMD29 CLR_WRITE_PROT Optional
CMD30 SEND_WRITE_PROT Optional
CMD32 ERASE_WR_BLK_START Mandatory
CMD33 ERASE_WR_BLK_END Mandatory
CMD38 ERASE Mandatory
CMD42 LOCK_UNLOCK Optional
CMD52 IO_RW_DIRECT Mandatory
CMD53 IO_RW_EXTENDED Mandatory Block mode is optional
CMD55
A
PP_CMD Mandatory
CMD56 GEN_CMD Mandatory
CMD58 READ_OCR Mandatory
CMD59 CRC_ON_OFF Mandatory Mandatory
A
CMD13 SD_STATUS Mandatory
A
CMD22 SEND_NUM_WR_BLOCKS Mandatory
A
CMD23 SET_WR_BLK_ERASE_COUNT Mandatory
A
CMD41 SD_APP_OP_COND Mandatory
A
CMD42 SET_CLR_CARD_DETECT Mandatory
A
CMD51 SEND_SCR Mandatory SCR includes only SD-MEM information.
Table A-15 SPI Mode Command List
1
For Part 1 v1.10 or higher Memory or Combo Cards