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E82802AC8 Datasheet(PDF) 31 Page - Intel Corporation |
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E82802AC8 Datasheet(HTML) 31 Page - Intel Corporation |
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31 / 53 page  Intel ® 82802AB/AC Firmware Hub R Datasheet 31 4.12. CUI Automation Flowcharts Figure 6. Automated Block Erase Flowchart SR.7 = 0 1 Start Write 20h, Block Address Write D0h, Block Address Full Status Check if Desired Block Erase Complete Full Status Check Procedure 1 Read Status Register Data (See Above) 1 0 Read Status Register 1 0 Command Sequence Error SR.3 = SR.5 = SR.4,5 = Block Erase Error Bus Operation Command Comments Standby Check SR.4,5 Both 1 = Command Sequence Error Standby SR.5, SR.4, and SR.3 are only cleared by the Clear Status Register command in cases where multiple blocks are erased before full status is checked. If error is detected, clear the Status Register before attempting retry or other error recovery. Check SR.5 1 = Block Erase Error Standby Bus Operation Command Comments Write Write Erase Setup Read Data = 20h Addr = Within Block to Be Erased Check SR.7 1 = WSM Ready 0 = WSM Busy Repeat for subsequent block erasures. Full status check can be done after each block erase, or after a sequence of block erasures. Write FFh after the last operation to place device in read array mode. Status Register Data Standby Erase Confirm Data = D0h Addr = Within Block to Be Erased Block Erase Successful Check SR.3 1 = V Error Detect PP V Range Error PP |
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