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28F008B3 Datasheet(PDF) 46 Page - Intel Corporation |
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28F008B3 Datasheet(HTML) 46 Page - Intel Corporation |
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46 / 49 page ![]() SMART 3 ADVANCED BOOT BLOCK–BYTE-WIDE E 46 PRELIMINARY APPENDIX B WRITE STATE MACHINE CURRENT/NEXT STATES Command Input (and Next State) Current State SR.7 Data When Read Read Array (FFH) Program Setup (40/10H) Erase Setup (20H) Erase Confirm (D0H) Program / Erase Susp. (B0H) Program / Erase Resume (D0) Read Status (70H) Clear Status (50H) Read ID (90H) Read Array “1” Array Read Array Program Setup Erase Setup Read Array Read Status Read Array Read Identifier Program Setup “1” Status Pgm. 1 Program (Command input = Data to be programmed) Program (Not Comp.) “0” Status Program Pgm Susp. to Status Program Program (Complete) “1” Status Read Array Program Setup Erase Setup Read Array Read Status Read Array Read Identifier Program Suspend to Status “1” Status Prog. Susp. to Array Program Suspend to Array Program Program Susp. to Array Program Prog. Susp. to Status Program Suspend to Array Program Suspend to Array “1” Array Prog. Susp. to Array Program Suspend to Array Program Program Susp. to Array Program Prog. Susp. to Status Prog. Susp. to Array Prog. Susp. to Array Erase Setup “1” Status Erase Command Error Erase Erase Cmd. Err. Erase Erase Command Error Erase Cmd. Error “1” Status Read Array Program Setup Erase Setup Read Array Read Status Read Array Read Identifier Erase (Not Comp) “0” Status Erase Ers. Susp. to Status Erase Erase (Complete) “1” Status Read Array Program Setup Erase Setup Read Array Read Status Read Array Read Identifier Erase Suspend to Status “1” Status Erase Susp. to Array Program Setup Erase Susp. to Array Erase Erase Susp. to Array Erase Erase Susp. to Status Erase Suspend to Array Erase. Susp. to Array “1” Array Erase Susp. to Array Program Setup Erase Susp. to Array Erase Erase Susp. to Array Erase Erase Susp. to Status Erase Suspend to Array Read Status “1” Status Read Array Program Setup Erase Setup Read Array Read Status Read Array Read Identifier Read Identifier “1” ID Read Array Program Setup Erase Setup Read Array Read Status Read Array Read Identifier 1. You cannot program “1”s to the flash. Writing FFH following the Program Setup will initiate the internal program algorithm of the WSM. Although the algorithm will execute, array data is not changed. The WSM returns to read status mode without reporting any error. Assuming VPP > VPPLK writing a second FFH while in read status mode will return the flash to read array mode. |
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