MC2GH256NMCA-2SA00 SAMSUNG [Samsung semiconductor], MC2GH256NMCA-2SA00 Datasheet - Page 89

• Manufacturer Part Number: MC2GH256NMCA-2SA00
• Description: SAMSUNG MultiMediaCard
• Manufacturer: SAMSUNG [Samsung semiconductor]

class 0
class 1
class 2
class 3
class 4
class 5
class 6
class 7
class 8
class 9
class 10-11
Card CMD
7.17.3 Command Description
The following table provides a detailed description of the SPI mode commands. The responses are defined in Chapter
7.18. Table 7-5 lists all MultiMediaCard commands. A “yes” in the SPI mode column indicates that the command is sup-
ported in SPI mode. With these restrictions, the command class description in the CSD is still valid. If a command does not
require an argument, the value of this field should be set to zero. The reserved commands are also reserved in MultiMedi-
aCard mode.
The card can be switched to a new command space, using the SWITCH command, just as in MultiMediaCard mode; with
the only limitation that in SPI mode the bus is always one bit wide.
The binary code of a command is defined by the mnemonic symbol. As an example, the content of the command index
field is (binary) ‘000000’ for CMD0 and ‘100111’ for CMD39.
Revision 0.3
(CCC)
Class
INDEX
CMD0
CMD1
CMD2
CMD3
CMD4
CMD5
CMD
reserved
Basic
Not supported in SPI
Block read
Not supported in SPI
Block write
Erase
Write-protection
Lock Card
Application specific
Not supported in SPI
Reserved
Mode
SPI
Yes
Yes
Class Description
No
No
No
Argument
None
None
0 1 6 8 9 1
+ + + + + +
Resp
R1
R1
GO_IDLE_STATE
SEND_OP_COND
0
Abbreviation
89
1
2
+
1
3
+
1
6
+ + + +
+
+
Supported commands
1
7
1
8
2
3
+ + + +
Resets the MultiMediaCard
Activates the card’s initialization process
2
4
2
5
2
7
Command Description
2
8
+ + +
2
9
MultiMediaCard
3
0
3
5
+ + +
3
6
3
8
Sep.22.2005
4
2
+
5
5
+ +
5
6
TM
5
8
+ +
5
9