BRIGHT
Microelectronics
Inc.
BM29F400T/BM29F400B
START
Read Byte
(DQ0-DQ7), Addr = VA
VA = Byte address for programming
= Any of the sector addresses
within the secotr being erased
during sector erase operation.
= XXXXH during Chip Erase
YES
DQ7 = Data
NO
NO
DQ5 = 1
YES
Read Byte
(DQ0-DQ7), Addr = VA
YES
DQ7 = Data
Fail
Pass
Figure 3.
Polling Algorithm
Data
Notes: DQ7 is rechecked even if DQ5 = logical "1" because DQ7 may change simultaneously with DQ5.
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