參數(shù)資料
型號(hào)： HB28E016MM2
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)： 40/88頁(yè)
文件大?。?/td> 329K
代理商： HB28E016MM2
HB28E016/D032/D064/B128MM2
40
register is cleared and PWD_LEN is set to 0. If the password is not correct then the
LOCK_UNLOCK_FAILED error bit will be set in the status register.
Locking a card:
—Select a card (CMD7), if not previously selected already
—Define the block length (CMD16), given by the 8 bit card lock/unlock mode, the 8 bit
password size (in bytes), and the number of bytes of the currently used password.
—Send the card lock/unlock command with the appropriate data block size on the data
line including 16-bit CRC. The data block shall indicate the mode LOCK, the length
(PWD_LEN) and the password (PWD) itself.
f the PWD content equals to the sent password then the card will be locked and the card-locked status bit
will be set in the status register. If the password is not correct then LOCK_UNLOCK_FAILED error bit
will be set in the status register. Note that it is possible to set the password and to lock the card in the same
sequence. In such case the host shall perform all the required steps for setting the password (as described
above) including the bit LOCK set while the new password command is sent. If the password was
previously set (PWD_LEN is not ‘0’), then the card will be locked automatically after power on reset. An
attempt to lock a locked card or to lock a card that does not have a password will fail and the
LOCK_UNLOCK_FAILED error bit will be set in the status register.
Unlocking the card:
—Select a card (CMD7), if not previously selected already.
—Define the block length (CMD16), given by the 8 bit card lock/unlock mode, the 8 bit
password size (in bytes), and the number of bytes of the currently used password.
—Send the card lock/unlock command with the appropriate data block size on the data
line including 16-bit CRC. The data block shall indicate the mode UNLOCK, the length
(PWD_LEN) and the password (PWD) itself.
f the PWD content equals to the sent password then the card will be unlocked and the card-locked status
bit will be cleared in the status register. If the password is not correct then the LOCK_UNLOCK_FAILED
error bit will be set in the status register. Note that the unlocking is done only for the current power
session. As long as the PWD is not cleared the card will be locked automatically on the next power up.
The only way to unlock the card is by clearing the password. An attempt to unlock an unlocked card will
fail and LOCK_UNLOCK_FAILED error bit will be set in the status register.
Forcing Erase:
n case that the user forgot the password (the PWD content) it is possible to erase all the card data content
along with the PWD content. This operation is called Forced Erase.
—Select a card (CMD7), if not previously selected already.
—Define the block length (CMD16) to 1 byte (8bit card lock/unlock command). Send
the card lock/unlock command with the appropriate data block of one byte on the data
相關(guān)PDF資料
PDF描述
HB28C048A6 FLASH ATA Card
HB28C048C6 CompactFlash⑩
HB28C016A6 FLASH ATA Card
HB28C016C6 CompactFlash⑩
HB28C032A6 FLASH ATA Card
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HB2A102K-S265B 制造商:Hitano Enterprise Corp 功能描述:Bulk
HB2A102K-S565B 制造商:Hitano Enterprise Corp 功能描述:Bulk
HB2A103K-S565B 制造商:Hitano Enterprise Corp 功能描述:
HB2A122K-S265B 制造商:Hitano Enterprise Corp 功能描述:
HB2A122K-S565B 制造商:Hitano Enterprise Corp 功能描述:Bulk
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