
14
P/N: PM1043
REV. 1.0, NOV. 25, 2003
MX53L06402
CMD
Type Argument
Resp
Abbreviation
Command Description
INDEX
CMD0
bc
[31:0] stuff bits
-
GO_IDLE_STATE
resets all cards to Idle State
CMD1
bcr
argument
R3
SEND_OP_COND checks for cards not supporting the full range of
ignored
2.0 to 3.6V. After receiving CMD1 the card
sends an R3 response (see "Chapter 6.5:
Responses").
CMD2
bcr
[31:0] stuff bits
R2
ALL_SEND_CID
asks all cards in ready state to send their CID 1
numbers on CMD-line
CMD3
ac
[31:16] RCA
R1
SET_RELATIVE_
assigns relative address to the card
[15:0] stuff bits
ADDR
in identification state.
CMD4
bc
[31:16] DSR
-
SET_DSR
programs the DSR of all cards in stand-by state.
[15:0] stuff bits
CMD7
ac
[31:16] RCA
R1
SELECT_
command toggles a card between the standby
[15:0] stuff
(only
DESELECT_
and transfer states or between the programming
bits
the
CARD
and disconnect state.
selected
In both cases the card is selected by its own
card)
relative address while deselecting the prior
selected card.
Address 0 deselects all.
CMD9
ac
[31:16] RCA
R2
SEND_CSD
asks the addressed card to send its card-
[15:0] stuff bits
specific data (CSD)2 on CMD-line.
CMD10 ac
[31:16] RCA
R2
SEND_CID
asks the addressed card to send its card
[15:0] stuff bits
identification (CID) on CMD-line.
CMD11 adtc
[31:0] data
R1
READ_DAT_
reads data stream from the card in sending-
UNTIL_STOP
data state, starting at the supplied address, until
STOP_TRANSMISSION follows.
CMD12 ac
[31:0] stuff bits
R1
STOP_
forces the card to stop transmission
TRANSMISSION
CMD13 ac
[31:16] RCA
R1
SEND_STATUS
Asks the addressed card to send its status
[15:0] stuff bits
register.
CMD15 ac
[31:16] RCA
-
GO_INACTIVE_
Sets the card to inactive state in order to protect
[15:0] stuff bits
STATE
the card stack against communications break-
downs.
The MX53L06402 supports the following MultiMediaCard command:
1.CID register consists of 128 bits (starting with MSB, it is preceded by an additional start bit, ends with an end bit)
2.CSD register consists of 128 bits (starting with MSB, it is preceded by an additional start bit, ends with an end bit)
3.The addressing capability @ 8 bit address resolution is 2 32 = 4 Gbyte
Table 15: Basic commands for read only devices (class 0 and class 1)