參數(shù)資料
型號: HB28B128MM2
廠商: Hitachi,Ltd.
英文描述: MultiMediaCard 16 Mbyte/32 Mbyte/64 Mbyte/128 MByte
中文描述: 多媒體16 Mbyte/32 Mbyte/64 Mbyte/128字節(jié)
文件頁數(shù): 28/88頁
文件大小: 329K
代理商: HB28B128MM2
HB28E016/D032/D064/B128MM2
28
Block-Oriented Read Commands
(class 2)
CMD
index
Type
Argument
Resp
Abbreviation
Command description
CMD16 ac
31:0] block
length
R1
SET_BLOCKLEN
Selects a block length (in bytes) for all
following block commands (read and
write).*
1
CMD17 adtc
31:0] data
address
R1
READ_SINGLE_BL
OCK
Reads a block of the size selected by
the SET_BLOCKLEN command.*
2
CMD18 adtc
31:0] data
address
R1
READ_MULTIPLE_
BLOCK
Continuously send blocks of data until
interrupted by a stop.
Notes: 1. The default block length is as specified in the CSD.
2. The data transferred must not cross a physical block boundary unless RD_BLK_MISALIGN is
set in the CSD.
Stream Write Command
(class 3)
CMD
index
Type
Argument
Resp
Abbreviation
Command description
CMD20 adtc
31:0] data
address
R1
WRITE_DAT_
UNTIL_STOP
Writes data stream from the host,
starting at the given address, until a
STOP_TRANSMISSION follows.
Block-Oriented Read/Write Command
(class 2/4)
CMD
index
Type
Argument
Resp
Abbreviation
Command description
CMD23 ac
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
immediately succeeding multiple block
read or write command.
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