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M58LR128HT Datasheet(PDF) 17 Page - STMicroelectronics |
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M58LR128HT Datasheet(HTML) 17 Page - STMicroelectronics |
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17 / 112 page  M58LR128HT, M58LR128HB Command interface 17/112 4 Command interface All Bus Write operations to the memory are interpreted by the Command Interface. Commands consist of one or more sequential Bus Write operations. An internal Program/Erase Controller handles all timings and verifies the correct execution of the program and erase commands. The Program/Erase Controller provides a Status Register whose output may be read at any time to monitor the progress or the result of the operation. The Command Interface is reset to read mode when power is first applied, when exiting from Reset or whenever VDD is lower than VLKO. Command sequences must be followed exactly. Any invalid combination of commands will be ignored. Refer to Table 4: Command codes, Table 5: Standard commands, Table 6: Factory commands, and Appendix D: Command interface state tables, for a summary of the Command Interface. Table 4. Command codes Hex Code Command 01h Block Lock Confirm 03h Set Configuration Register Confirm 10h Alternative Program Setup 20h Block Erase Setup 2Fh Block Lock-Down Confirm 40h Program Setup 50h Clear Status Register 60h Block Lock Setup, Block Unlock Setup, Block Lock Down Setup and Set Configuration Register Setup 70h Read Status Register 80h Buffer Enhanced Factory Program Setup 90h Read Electronic Signature 98h Read CFI Query B0h Program/Erase Suspend BCh Blank Check Setup C0h Protection Register Program CBh Blank Check Confirm D0h Program/Erase Resume, Block Erase Confirm, Block Unlock Confirm, Buffer Program or Buffer Enhanced Factory Program Confirm E8h Buffer Program FFh Read Array |
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