MultiMediaCardTM
* ERASE: 1 Defines Forced Erase Operation (all other bits shall be ‘0’) and only the cmd byte is sent.
* LOCK/UNLOCK: 1 = Locks the card. 0 = Unlock the card (note that it is valid to set this bit together
with SET_PWD but it is not allowed to set it together with CLR_PWD).
* CLR_PWD: 1 = Clears PWD.
* SET_PWD: 1 = Set new password to PWD
* PWD_LEN: Defines the following password length (in bytes).
* PWD: The password (new or currently used depending on the command).
The data block size shall be defined by the host before it sends the card lock/unlock command. This
will allow different password sizes. The following paragraphs define the various lock/unlock
command sequences:
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SAMSUNG [ SAMSUNG ]
