HB288032MM1 Datasheet, PDF(27/80 Page) Hitachi Semiconductor

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HB288032MM1 Datasheet, PDF (27/80 Pages) Hitachi Semiconductor – MultiMediaCard 32 MByte

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HB288032MM1

Block-Oriented Read Commands (class 2)

CMD

index Type Argument

Resp Abbreviation

Command description

CMD16 ac [31:0] block

length

SET_BLOCKLEN

Selects a block length (in bytes) for all

following block commands (read and

write).*1

CMD17 adtc [31:0] data

READ_SINGLE_BL Reads a block of the size selected by

address

OCK

the SET_BLOCKLEN command.*2

CMD18 adtc [31:0] data

READ_MULTIPLE_ Continuously send blocks of data until

address

BLOCK

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

CMD20 adtc [31:0] data

address

Resp

Abbreviation

WRITE_DAT_

UNTIL_STOP

Command description

writes data stream from the host,

starting at the given address, until a

STOP_TRANSMISSION follows.

Block-Oriented Write Commands (class 4)

CMD

index Type Argument

Resp Abbreviation

Command description

CMD24 adtc [31:0] data

WRITE_BLOCK Writes a block of the size selected by

address

the SET_BLOCKLEN command.*1

CMD25 adtc [31:0] data

WRITE_MULTIPLE Continuously writes blocks of data until

address

_ BLOCK

a STOP_TRANSMISSION follows.

CMD26 adtc [31:0] stuff bits R1

PROGRAM_CID

Programming of the card identification

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.

CMD27 adtc [31:0] stuff bits R1

PROGRAM_CSD Programming of the programmable bits

of the CSD.

Note: 1. The data transferred must not cross a physical block boundary unless WRITE_BLK_MISALIGN

is set in the CSD.

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