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參數資料
| 型號： | MC28U512HACA-0QC00 |
| 廠商： | SAMSUNG SEMICONDUCTOR CO. LTD. |
| 英文描述： | MultiMediaCard Specification |
| 中文描述： | 多媒體卡規格 |
| 文件頁數： | 32/66頁 |
| 文件大小： | 1422K |
| 代理商： | MC28U512HACA-0QC00 |
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MultiMediaCard
TM
32
[15:0] stuff bits
[31:16] RCA
[15:0] stuff bits
[31:0] data
address
specific data (CSD)
*2
on CMD-line.
Asks the addressed card to send its card
identification (CID) on CMD-line.
Reads data stream from the card, starting at
the given address, until a
STOP_TRANSMISSION follows.
These Samsung MultiMediaCard do not
support this command
Terminates a read/write stream/multiple
block operation. When CMD12 is used to
terminate a read transaction the card will
respond with R1. When it is used to stop a
write transaction the card will respond with
R1b.
Asks the addressed card to send its status
register.
CMD10 ac
R2
SEND_CID
CMD11
adtc
R1
READ_DAT_UNTIL
_STOP
CMD12 ac
[31:0] stuff bits R1
or
R1b
*3
STOP_TRANSMISS
ION
CMD13 ac
[31:16] RCA
[15:0] stuff bits
R1
SEND_STATUS
CMD14 reserved
CMD15 ac
[31:16] RCA
[15:0] stuff bits
GO_INACTIVE_STA
TE
Sets the card to inactive state in order to
protect the card stack against
communications breakdowns.
Selects a block length (in bytes) for all
following block commands (read and write).
*4
CMD16 ac
[31:0] block
length
R1
SET_BLOCKLEN
CMD17 adtc
[31:0] data
address
[31:0] data
address
reserved
[31:0] data
address
R1
READ_SINGLE_BL
OCK
READ_MULTIPLE_
BLOCK
Reads a block of the size selected by the
SET_BLOCKLEN command.
*5
Continuously send blocks of data until
interrupted by a stop.
CMD18 adtc
R1
CMD19
CMD20 adtc
R1
WRITE_DAT_UNTIL
_STOP
Writes data stream from the host, starting at
the given address, until a
STOP_TRANSMISSION follows.
These Samsung MultiMediaCard do not
support this command
CMD21
…
CMD22
CMD23 ac
reserved
[31:16] set to 0
[15:0] number
of blocks
R1
SET_BLOCK_COU
NT
Defines the number of blocks which are
going to be transferred in the immediatedly
succeeding multiple block read or write
command.
Writes a block of the size selected by the
SET_BLOCKLEN command.
*6
Continuously writes blocks of data until a
STOP_TRANSMISSION follows.
Programming of the card identification
register. This command is only done once
per MultiMediaCard card. The card has
some hardware to prevent this operation
after the first programming. Normally this
command is reserved for the manufacturer.
Programming of the programmable bits of
the CSD.
If the card has write protection features, this
command sets the write protection bit of the
addressed group. The properties of write
protection are coded in the card specific
CMD24 adtc
[31:0] data
address
[31:0] data
address
[31:0] stuff bits R1
R1
WRITE_BLOCK
CMD25 adtc
R1
WRITE_MULTIPLE_
BLOCK
PROGRAM_CID
CMD26 adtc
CMD27 adtc
[31:0] stuff bits R1
PROGRAM_CSD
CMD28 ac
[31:0] data
address
R1b
SET_WRITE_PROT
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