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MC1GU064HCYB-0QC00 Datasheet(数据表) 54 Page - Samsung semiconductor

部件型号  MC1GU064HCYB-0QC00
说明  MultiMediaCard Specification
下载  66 Pages
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制造商  SAMSUNG [Samsung semiconductor]
网页  http://www.samsung.com/Products/Semiconductor
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MC1GU064HCYB-0QC00 Datasheet(HTML) 54 Page - Samsung semiconductor

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MultiMediaCard
TM
54
The following table provides a detailed description of the SPI bus commands. The responses are
defined in Chapter “Responses”. The Table “Commands and Arguments” lists all MultiMediaCard
commands. A “yes” in the SPI mode colon indicates that the command is supported 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
reserved in MultiMediaCard mode as well. 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.
Table 4-15 Commands and Arguments
CMD index
SPI mode
Argument
Resp
Abbreviation
Command description
CMD0
Yes
None
R1
GO_IDLE_STATE
resets the MultiMediaCard
CMD1
Yes
None
R1
SEND_OP_COND
Activates the card’s initialization
process.
CMD2
No
CMD3
No
CMD4
No
CMD5
reversed
CMD6
reversed
CMD7
No
CMD8
reversed
CMD9
Yes
None
R1
SEND_CSD
asks the selected card to send its
card-specific data (CSD)
CMD10
Yes
None
R1
SEND_CID
asks the selected card to send its
card identification (CID)
CMD11
No
CMD12
No
CMD13
Yes
None
R2
SEND_STATUS
asks the selected card to send its
status register.
CMD14
reversed
CMD15
No
CMD16
Yes
[31:0] block length
R1
SET_BLOCKLEN
selects a block length (in bytes)
for all following block commands
(read and write).
*1
CMD17
Yes
[31:0]
data
address
R1
READ_SINGLE_
BLOCK
reads a block of the size selected
by the SET_BLOCKLEN
command.
*2
CMD18
Yes
[31:0]
data
address
R1
READ_MULTIPLE
_BLOCK
continuously transfers data blocks
from card to host until interrupted
by a stop command or the
requested number of data blocks
transmitted.
CMD19
reversed
CMD20
No
CMD21…
CMD22
reversed
CMD23
Yes
[31:16] set to 0
[15:0] number of
blocks
R1
SET_BLOCK_CO
UNT
Defines the number of blocks
which are going to be transferred
in the immediately exceeding
multiple block read or write
command.
CMD24
Yes
[31:0]
data
address
R1b
*3
WRITE_BLOCK
writes a block of the size selected
by the SET_BLOCKLEN




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