UPD78F0138 NEC, UPD78F0138 Datasheet - Page 434

• Manufacturer Part Number: UPD78F0138
• Description: (UPD78xxxx) 8-Bit Single-Chip Microcontrollers
• Manufacturer: NEC

434
(1) Branches to address F7FDH when fetch address matches correction address
(2) Branches to branch destination judgment program
(3) Branches to correction program 1 by branch destination judgment program (BTCLR !CORST0, $xxxxH)
(4) Returns to internal ROM (internal flash memory) program
(5) Branches to address F7FDH when fetch address matches correction address
(6) Branches to branch destination judgment program
(7) Branches to correction program 2 by branch destination judgment program (BTCLR !CORST1, $yyyyH)
(8) Returns to internal ROM (internal flash memory) program
Remark Area filled with diagonal lines: Internal expansion RAM
JUMP: Branch destination judgment program start address
Figure 26-9. Program Transition Diagram (When Two Places Are Corrected)
F7FDH
FFFFH
F7FFH
0000H
xxxxH
yyyyH
JUMP
(Internal flash memory)
(Internal flash memory)
(Internal flash memory)
Correction program 2
Correction program 1
Branch destination
judgment program
Correction place 2
Correction place 1
Internal ROM
Internal ROM
Internal ROM
BR !JUMP
CHAPTER 26 ROM CORRECTION
User’s Manual U16228EJ2V0UD
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