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Reprogram Data Computation Table
Result of Verify-Read
after Write Pulse
(D)
Application (V)
0
0
0
1
1
0
1
1
Legend
(D): Source data of bits on which programming is executed
(X): Source data of bits on which reprogramming is executed
Additional-Programming Data Computation Table
Result of Verify-Read
after Write Pulse
(X')
Application (V)
0
0
0
1
1
0
1
1
Legend
(Y): Data of bits on which additional programming is executed
(X'): Data of bits on which reprogramming is executed in a certain reprogramming loop
7. It is necessary to execute additional programming processing during the course of the LSI
program/program-verify procedure. However, once 128-byte-unit programming is finished,
additional programming should not be carried out on the same address area. When executing
reprogramming, an erase must be executed first. Note that normal operation of reads, etc., is
not guaranteed if additional programming is performed on addresses for which a
program/program-verify operation has finished.
(X)
Result of Operation
1
0
1
1
(Y)
Result of Operation
0
1
1
1
Comments
Programming completed: reprogramming
processing not to be executed
Programming incomplete: reprogramming
processing to be executed
Still in erased state: no action
Comments
Programming by write pulse application
judged to be completed: additional
programming processing to be executed
Programming by write pulse application
incomplete: additional programming
processing not to be executed
Programming already completed: additional
programming processing not to be executed
Still in erased state: no action
685
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