hb28b128mm2 Renesas Electronics Corporation., hb28b128mm2 Datasheet - Page 30

• Manufacturer Part Number: hb28b128mm2
• Description: Multimediacard 16 Mbyte/32 Mbyte/64 Mbyte/128 Mbyte
• Manufacturer: Renesas Electronics Corporation.

HB28H016/D032/B064/B128MM2
Block-Oriented Read Commands (class 2)
CMD
index
CMD16 ac
CMD17 adtc
CMD18 adtc
Notes: 1. The default block length is as specified in the CSD. These Hitachi MultiMediaCards do not
Stream Write Command (class 3)
CMD
index
CMD20 adtc
Block-Oriented Read/Write Command (class 2/4)
CMD
index
CMD23 ac
Rev.5.0, Jan. 2003, page 28 of 88
2. The data transferred must not cross a physical block boundary unless READ_BLK_MISALIGN is
Type Argument
Type Argument
Type Argument
support partial block write, so the write block size defined by WRITE_BLK_LEN is parmanently
assigned to the value 512 bytes.
set in the CSD. These Hitachi 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.
[31:0] block
length
[31:0] data
address
[31:0] data
address
[31:0] data
address
[31:16] set to 0
[15:0] number of
blocks
Resp
R1
R1
R1
Resp
R1
Resp
R1
Abbreviation
SET_BLOCKLEN
READ_SINGLE_BL
OCK
READ_MULTIPLE_
BLOCK
Abbreviation
WRITE_DAT_
UNTIL_STOP
Abbreviation
SET_BLOCK_COU
NT
Command description
Selects a block length (in bytes) for all
following block-oriented read
commands and lock card command.*
Reads a block of the size selected by
the SET_BLOCKLEN command.*
Continuously send blocks of data until
interrupted by a stop.
Command description
Writes data stream from the host,
starting at the given address, until a
STOP_TRANSMISSION follows.
Command description
Defines the number of blocks which
are going to be transferred in the
immediately succeeding multiple block
read or write command.
2
1