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參數(shù)資料
| 型號： | HB28J512MM3 |
| 廠商： | Renesas Technology Corp. |
| 英文描述： | MultiMediaCard 32 MByte/64 MByte/128 MByte/256 MByte/512 MByte |
| 中文描述： | 多媒體32 MByte/64 MByte/128 MByte/256 MByte/512字節(jié) |
| 文件頁數(shù)： | 29/91頁 |
| 文件大?。?/td> | 526K |
| 代理商： | HB28J512MM3 |
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HB28K032/L064/J128/J256/J512MM3, HB28K032/L064/J128/J256RM3
Rev.0.02, Sep.15.2004, page 29 of 89
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-oriented read
commands and lock card command.
*
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. These Renesas MultiMediaCards do not
support partial block write, so the write block size defined by WRITE_BLK_LEN is permanently
assigned to the value 512 bytes.
2. The data transferred must not cross a physical block boundary unless READ_BLK_MISALIGN is
set in the CSD. These Renesas MultiMediaCards do not support read block operations with
boundary crossing (READ_BLK_MISALIGN =
‘
0
’
), so the data transferred must not cross a
physical block boundary.
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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