SanDisk SDMB-16-771 Product Manual - Page 50

Table 5-3, Basic Commands and Read Stream Commands Class 0 And Class 1

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MultiMediaCard Product Manual Table 5-3 Basic Commands and Read Stream Commands (Class 0 And Class 1) Cmd Type Index Argument Resp Abbreviation Command Description CMD0 bc [31:0] don't cares* - GO_IDLE_STATE Resets all cards to Idle State. CMD1 bcr [31:0] OCR R3 without busy SEND_OP_COND Asks all cards in idle state to send their operation conditions register content in the response on the CMD line. CMD2 bcr [31:0] don't cares* R2 ALL_SEND_CID Asks all cards to send their CID numbers on the CMD line. CMD3 ac [31:16] RCA R1 [15:0] don't cares* SET_RELATIVE_ ADDR Assigns relative address to the card. CMD41 Not Supported CMD5 Reserved CMD6 Reserved CMD7 ac [31:16] RCA R1 SELECT/DESELECT_ Command toggles a card between the [15:0] don't cares* (only CARD Stand-by and Transfer states or between from the the Programming and Disconnect state. selected card) In both cases the card is selected by its own relative address and deselected by any other address; address 0 deselects all. CMD8 Reserved CMD9 ac [31:16] RCA R2 [15:0] don't cares* SEND_CSD Addressed card sends its card-specific data (CSD) on the CMD line. CMD10 ac [31:16] RCA R2 [15:0] don't cares* SEND_CID Addressed card sends its card identification (CID) on the CMD line. CMD11 adtc [31:0] data address2 R1 READ_DAT_UNTIL_ STOP Reads data stream from the card, starting at the given address, until a STOP_TRANSMISSION follows. CMD12 ac [31:0] don't cares* R1b3 STOP_ TRANSMISSION Terminates a stream or a multiple block read/write operation. CMD13 ac [31:16] RCA R1 [15:0] don't cares* SEND_STATUS Addressed card sends its status register. CMD14 Reserved CMD15 ac [31:16] RCA - [15:0] don't cares* GO_INACTIVE_ STATE Sets the card to inactive state. *Note: The bit places must be filled but the value is irrelevant. 1) The DSR option (as well as the SET_DSR command) is not supported by the SanDisk MultiMediaCard. 2) The addressing capability @ 8 bit address resolution is 232 = 4 Gbyte. 3) The card may become busy after this command. Refer to Figure 5-18 for more details. 50 SanDisk MultiMediaCard Product Manual Rev. 2 © 2000 SANDISK CORPORATION

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MultiMediaCard Product Manual
SanDisk MultiMediaCard Product Manual Rev. 2 © 2000 SANDISK CORPORATION
50
Table 5-3
Basic Commands and Read Stream Commands (Class 0 And Class 1)
Cmd
Index
Type
Argument
Resp
Abbreviation
Command Description
CMD0
bc
[31:0] don’t cares*
-
GO_IDLE_STATE
Resets all cards to Idle State.
CMD1
bcr
[31:0] OCR
without busy
R3
SEND_OP_COND
Asks all cards in idle state to send their
operation conditions register content in
the response on the CMD line.
CMD2
bcr
[31:0] don’t cares*
R2
ALL_SEND_CID
Asks all cards to send their CID numbers
on the CMD line.
CMD3
ac
[31:16] RCA
[15:0] don’t cares*
R1
SET_RELATIVE_
ADDR
Assigns relative address to the card.
CMD4
1
Not Supported
CMD5
Reserved
CMD6
Reserved
CMD7
ac
[31:16] RCA
[15:0] don’t cares*
R1
(only
from the
selected
card)
SELECT/DESELECT_
CARD
Command toggles a card between the
Stand-by and Transfer states or between
the Programming and Disconnect state.
In both cases the card is selected by its
own relative address and deselected by
any other address; address 0 deselects all.
CMD8
Reserved
CMD9
ac
[31:16] RCA
[15:0] don’t cares*
R2
SEND_CSD
Addressed card sends its card-specific
data (CSD)
on the CMD line.
CMD10
ac
[31:16] RCA
[15:0] don’t cares*
R2
SEND_CID
Addressed card sends its card
identification (CID) on the CMD line.
CMD11
adtc
[31:0] data
address
2
R1
READ_DAT_UNTIL_
STOP
Reads data stream from the card,
starting at the given address, until a
STOP_TRANSMISSION follows.
CMD12
ac
[31:0] don’t cares*
R1b
3
STOP_
TRANSMISSION
Terminates a stream or a multiple block
read/write operation.
CMD13
ac
[31:16] RCA
[15:0] don’t cares*
R1
SEND_STATUS
Addressed card sends its status
register.
CMD14
Reserved
CMD15
ac
[31:16] RCA
[15:0] don’t cares*
-
GO_INACTIVE_
STATE
Sets the card to inactive state.
*Note:
The bit places must be filled but the value is irrelevant.
1)
The DSR option (as well as the SET_DSR command) is not supported by the SanDisk MultiMediaCard.
2)
The addressing capability @ 8 bit address resolution is 2
32
= 4 Gbyte.
3)
The card may become busy after this command. Refer to Figure 5-18 for more details.