h8s-2646 Renesas Electronics Corporation., h8s-2646 Datasheet - Page 725
h8s-2646
Manufacturer Part Number
h8s-2646
Description
Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.H8S-2646.pdf
(1165 pages)
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Legend:
(D): Source data of bits on which programming is executed
(X): Source data of bits on which reprogramming is executed
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
(D)
0
0
1
1
(X')
0
0
1
1
Reprogram Data Computation Table
Additional-Programming Data Computation Table
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.
Result of Verify-Read
after Write Pulse
Application (V)
0
1
0
1
Result of Verify-Read
after Write Pulse
Application (V)
0
1
0
1
Result of Operation
0
1
1
1
(Y)
(X)
Result of Operation
1
0
1
1
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
Rev. 5.00 Sep 22, 2005 page 699 of 1136
Comments
Programming completed: reprogramming
processing not to be executed
Programming incomplete: reprogramming
processing to be executed
Still in erased state: no action
REJ09B0257-0500
Section 20 ROM
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