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800FB Datasheet(PDF) 31 Page - Numonyx B.V |
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800FB Datasheet(HTML) 31 Page - Numonyx B.V |
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31 / 67 page  M29FxxxFT, M29FxxxFB Command Interface 31/67 Table 5. Commands, 8-bit mode, BYTE = VIL X Don’t Care, PA Program Address, PD Program Data, BA Any address in the Block. All values in the table are in hexadecimal. Command Interface: only uses A–1, A0-A10 and DQ0-DQ7 to verify the commands; A11-A19, DQ8-DQ14 and DQ15 are Don’t Care. DQ15A–1 is A–1 when BYTE is VIL or DQ15 when BYTE is VIH. Read/Reset: After a Read/Reset command, read the memory as normal until another command is issued. Auto Select: After an Auto Select command, read Manufacturer ID, Device ID or Block Protection Status. Program, Unlock Bypass Program, Chip Erase, Block Erase: After these commands read the Status Register until the Program/Erase Controller completes and the memory returns to Read Mode. Add additional Blocks during Block Erase Command with additional Bus Write Operations until Timeout Bit is set. Unlock Bypass: After the Unlock Bypass command issue Unlock Bypass Program or Unlock Bypass Reset commands. Unlock Bypass Reset: After the Unlock Bypass Reset command read the memory as normal until another command is issued. Erase Suspend: After the Erase Suspend command read non-erasing memory blocks as normal, issue Auto Select and Program commands on non-erasing blocks as normal. Erase Resume: After the Erase Resume command the suspended Erase operation resumes, read the Status Register until the Program/Erase Controller completes and the memory returns to Read Mode. CFI Query: Command is valid when device is ready to read array data or when device is in Auto Select mode. Command Bus Write Operations 1st 2nd 3rd 4th 5th 6th Addr Data Addr Data Addr Data Addr Data Addr Data Addr Data Read/Reset 1X F0 3 AAA AA 555 55 X F0 Auto Select 3 AAA AA 555 55 AAA 90 Program 4 AAA AA 555 55 AAA A0 PA PD Unlock Bypass 3 AAA AA 555 55 AAA 20 Unlock Bypass Program 2 X A0 PA PD Unlock Bypass Reset 2 X 90 X 00 Chip Erase 6 AAA AA 555 55 AAA 80 AAA AA 555 55 AAA 10 Block Erase 6+ AAA AA 555 55 AAA 80 AAA AA 555 55 BA 30 Erase Suspend 1 X B0 Erase Resume 1 X 30 Read CFI Query 1 AA 98 |
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