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MB89R119B Datasheet(PDF) 4 Page - RAMXEED LIMITED |
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MB89R119B Datasheet(HTML) 4 Page - RAMXEED LIMITED |
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4 / 46 page  MB89R119B 4 DS411-00002-4v0-E * : Reserved for future use The security status of the user area is stored in the block security status bit in system area blocks of “3EH” and “3FH” per bit in each block. A user area is unlocked when the corresponding block security status bit is “0”; it is locked (disable to write state) when the corresponding block security status bit is “1”. In the same way, data in the security status of AFI and DSFID are stored in “AFI Lock Status” and “DSFID Lock Status” respectively. The EAS bit is 1 bit, and it is used for setting EAS status. It is possible to read up to 64 blocks data by one command and to write up to 2 blocks data by one command. “3EH” and “3FH” block format MSB LSB 32 31 26 1 3EH Block security status (BSS) of user block 1FH BSS of 00H 3FH AFI Lock Status DSFID Lock Status RFU* (4 bits) BSS of 39H BSS of 20H |
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