H8S2140B Datasheet, PDF (676/845 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2100 Series

Section 23 ROM
H'FFE080
H'FFE088
40
FE
64
66
32
31
34
39
(Product ID) H8S/2140B, H8S/2141B, H8S/2148B, H8S/2160B, or H8S/2161B
Instruction codes of the programming control program
H'FFD080
H'FFD088
40
FE
64
66
32
31
34
35
(Product ID) H8S/2145B
Instruction codes of the programming control program
Figure 23.9 ID Code Area
23.7.2 User Program Mode
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 set branching
conditions and provide on-board means of supplying programming data. The flash memory must
contain the user program/erase control program or a program which provides the user
program/erase control program from external memory. Because the flash memory itself cannot be
read during programming/erasing, transfer the user program/erase control program to on-chip
RAM, as like in boot mode. Figure 23.10 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 23.8, Flash Memory Programming/Erasing.
Rev. 3.00 Mar 21, 2006 page 622 of 788
REJ09B0300-0300