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CHAPTER 22 ROM CORRECTION
User’s Manual U15798EJ2V0UD
22.6 Program Execution Flow
Figures 22-8 and 22-9 show the program transition diagrams when ROM correction is used.
Figure 22-8. Program Transition Diagram (When One Place Is Corrected)
(1) Branches to address F7FDH when fetch address matches correction address
(2) Branches to correction program
(3) Returns to internal ROM program (on-chip flash memory)
Caution Do not use internal high-speed RAM and LCD display RAM for ROM correction area.
Remark
JUMP: Correction program start address
Correction place
Internal ROM
Internal ROM
(on-chip flash memory)
JUMP
FFFFH
F7FFH
F7FDH
xxxxH
0000H
(1)
(2)
(3)
BR !JUMP
Correction program
Internal
expansion
RAM
Содержание mPD780344 Series
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