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M29F010B45N3T Datasheet(PDF) 7 Page - STMicroelectronics |
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M29F010B45N3T Datasheet(HTML) 7 Page - STMicroelectronics |
7 / 20 page 7/20 M29F010B Table 5. Commands Note: X Don’t Care, PA Program Address, PD Program Data, BA Any address in the Block. All values in the table are in hexadecimal. The Command Interface only uses address bits A0-A10 to verify the commands, the upper address bits are Don’t Care. 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 the 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. 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 3555 AA 2AA 55 X F0 Auto Select 3 555 AA 2AA 55 555 90 Program 4 555 AA 2AA 55 555 A0 PA PD Unlock Bypass 3 555 AA 2AA 55 555 20 Unlock Bypass Program 2 X A0 PA PD Unlock Bypass Reset 2 X 90 X 00 Chip Erase 6 555 AA 2AA 55 555 80 555 AA 2AA 55 555 10 Block Erase 6+ 555 AA 2AA 55 555 80 555 AA 2AA 55 BA 30 Erase Suspend 1 X B0 Erase Resume 1 X 30 Block Erase operation and return the memory to Read mode. The command requires one Bus Write operation. The Program/Erase Controller will suspend within 15µs of the Erase Suspend Command being is- sued. Once the Program/Erase Controller has stopped the memory will be set to Read mode and the Erase will be suspended. If the Erase Suspend command is issued during the period when the memory is waiting for an additional block (before the Program/Erase Controller starts) then the Erase is suspended immediately and will start im- mediately when the Erase Resume Command is issued. It will not be possible to select any further blocks for erasure after the Erase Resume. During Erase Suspend it is possible to Read and Program cells in blocks that are not being erased; both Read and Program operations behave as normal on these blocks. Reading from blocks that are being erased will output the Status Register. It is also possible to enter the Auto Select mode: the memory will behave as in the Auto Select mode on all blocks until a Read/Reset command returns the memory to Erase Suspend mode. Erase Resume Command. The Erase Resume command must be used to restart the Program/ Erase Controller from Erase Suspend. An erase can be suspended and resumed more than once. |
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