
CHAPTER 26 ROM CORRECTION
User’s Manual U16228EJ2V0UD
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26.6 Program Execution Flow
Figures 26-8 and 26-9 show the program transition diagrams when the ROM correction is used.
Figure 26-8. Program Transition Diagram (When One Place Is Corrected)
FFFFH
Correction place
Internal ROM
Internal ROM
(Internal flash memory)
JUMP
F7FFH
F7FDH
xxxxH
0000H
(1)
(2)
(3)
BR !JUMP
Correction program
(1) Branches to address F7FDH when fetch address matches correction address
(2) Branches to correction program
(3) Returns to internal ROM (internal flash memory) program
Remark
Area filled with diagonal lines: Internal expansion RAM
JUMP: Correction program start address