Commands For The Mmc/Sd Module; Table 20-24 Command Format; Table 20-25 Commands For Mmc/Sd Module - Motorola DragonBall MC9328MX1 Reference Manual

Multimedia Card/Secure Digital Host Controller Module (MMC/SD)
Bit 47
Start Bit
Description
0
Value
Transmission Bit—A
•
Command Index—Contains the binary-coded number of the command index.
•
Argument—Some commands require an address that is coded in 32 bits.
•

20.7.8.4 Commands for the MMC/SD Module

Table 20-25 list all the MMC/SD module's commands, their type, argument, format, and description.
CMD
Type
INDEX
CMD0 BC [31:0] stuff bits
CMD1 BCR [31:0] OCR
without busy
CMD2 BCR [31:0] stuff bits
CMD3 AC [31:16] RCA
[15:0] stuff bits
CMD4 BC [31:16] DSR
[15:0] stuff bits
CMD5 BC [31:0] OCR
without busy
CMD6
CMD7 AC [31:16] RCA
[15:0] stuff bits
CMD8
20-56
Table 20-24. Command Format
Bit 46
Transmission Bit
1
indicates a transmission from the MMC/SD module to a card.
1
Table 20-25. Commands for MMC/SD Module
Response
Argument
Format
–
R3
R2
R1
R6
(SD I/O)
–
R4
R1b
MC9328MX1 Reference Manual
Bits 45-40 Bits 39-8
Command Index Argument
x
Abbreviation
GO_IDLE Resets all MMC and SD memory
_STATE cards to idle state.
SEND_OP Asks all MMC and SD memory cards
_COND in idle state to send their operation
conditions register contents on the
SD_CMD line.
ALL_SEND_CID Asks all cards to send their CID
numbers on the SD_CMD line.
SET_RELATIVE Assigns the argument as the relative
_ADDR address of the card.
SET_DSR Programs the DSR of all cards.
IO_SEND_OP Asks all SD I/O cards in idle state to
_COND send their operation conditions
register contents on the SD_CMD line.
Reserved
SELECT/ Toggles a card between stand-by and
DESELECT transfer states or between
_CARD programming and disconnect states.
The card is selected by its own relative
address and is deselected by any
other address. Address 0 deselects all
cards.
Reserved
Bits 7-1 Bit 0
CRC7 End Bit
x x
Description
MOTOROLA
1