參數(shù)資料
型號(hào)： 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(yè)數(shù)： 30/88頁(yè)
文件大小： 329K
代理商： HB28B128MM2
HB28E016/D032/D064/B128MM2
30
Write Protection Commands
(class 6)
CMD
index
Type
Argument
Resp
Abbreviation
Command description
CMD28 ac
31:0] data
address
R1b
SET_WRITE_PROT f 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 data
(WP_GRP_SIZE).
CMD29 ac
31:0] data
address
R1b
CLR_WRITE_PROT f the card provides write protection
features, this command clears the write
protection bit of the addressed group.
CMD30 adtc
31:0] write
protect data
address
R1
SEND_WRITE_PR
OT
if the card provides write protection
features, this command asks the card
to send the status of the write
protection bits.*
1
Note:
1. 32 write protection bits (representing 32 write protect groups starting at the specified address)
followed by 16 CRC bits are transferred in a payload format via the data line. The last (least
significant) bit of the protection bits corresponds to the first addressed group. If the addresses of
the last groups are outside the valid range, then the corresponding write protection bits shall be
set to zero.
Lock Card Command
(class 7)
CMD
index
Type
Argument
Resp
Abbreviation
Command description
CMD42 adtc
31:0] stuff bits
R1b
LOCK_UNLOCK
used to set/reset the password or
lock/unlock the card. The size of the
data block is set by the
SET_BLOCK_LEN command.
相關(guān)PDF資料
PDF描述
HB28D032MM2 MultiMediaCard 16 Mbyte/32 Mbyte/64 Mbyte/128 MByte
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