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AB28F800B5T80 Datasheet(PDF) 21 Page - Intel Corporation |
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AB28F800B5T80 Datasheet(HTML) 21 Page - Intel Corporation |
21 / 44 page ![]() E 28F200B5, 28F004/400B5, 28F800B5 21 PRELIMINARY SR.7 = 1 ? NO YES Start Write 40H, Word/Byte Address Write Word/Byte Data/Address Full Status Check if Desired Word/Byte Program Complete FULL STATUS CHECK PROCEDURE 1 0 Read Status Register Data (See Above) 1 0 Read Status Register V PP Range Error Bus Operation Command Comments Standby Standby Check SR.3 1 = V PP Low Detect SR.3 MUST be cleared, if set during a program attempt, before further attempts are allowed by the Write State Machine. SR.4 is only cleared by the Clear Status Register Command, in cases where multiple bytes are programmed before full status is checked. If error is detected, clear the Status Register before attempting retry or other error recovery. Bus Operation Command Comments Write Write Setup Program Data = Data to Program Addr = Location to Program Read Data = 40H Addr = Word/Byte to Program Check SR.7 1 = WSM Ready 0 = WSM Busy Repeat for subsequent word/byte program operations. SR Full Status Check can be done after each word/byte program operation, or after a sequence of word/byte programs. Write FFH after the last program operation to reset device to read array mode. Standby SR.3 = SR.4 = Word/Byte Program Error Word/Byte Program Successful Check SR.4 1 = Word Byte Program Error Program Status Register Data Toggle CE# or OE# to Update SRD. 0599-07 Figure 8. Automated Word/Byte Program Flowchart |
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