h8s-2649 Renesas Electronics Corporation., h8s-2649 Datasheet - Page 583
h8s-2649
Manufacturer Part Number
h8s-2649
Description
Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.H8S-2649.pdf
(766 pages)
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19.6.2
On-board programming/erasing of an individual flash memory block can also be performed in user
program mode by branching to a user program/erase control program. The user must prepare on-
board means for controlling FWE, on-board means of supplying programming data, and branching
conditions. The flash memory must contain the user program/erase control program or a program
that provides the user program/erase control program from external memory. As the flash memory
itself cannot be read during programming/erasing, transfer the user program/erase control program
to on-chip RAM, as in boot mode. Figure 19.6 shows a sample procedure for
programming/erasing in user program mode. Prepare a user program/erase control program in
accordance with the description in section 19.8, Flash Memory Programming/Erasing.
Figure 19.6 Programming/Erasing Flowchart Example in User Program Mode
Programming/Erasing in User Program Mode
Branch to user program/erase control
Transfer user program/erase control
Execute user program/erase control
Branch to flash memory application
program (flash memory rewrite)
program to RAM
program in RAM
Program/erase?
Reset-start
program
Yes
No
Branch to flash memory application
Rev. 2.00 Dec. 05, 2005 Page 545 of 724
program
REJ09B0200-0200
Section 19 ROM
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