Chapter 2 CPU Basics

2-7-4 ROM Correction Setup Example

„Initial Routine with ROM Correction

The following routine should be set to correct the program. Also store the ROM correction setup and the correct program to the external EEPROM, in advance.

Here is the steps for ROM correction execution.

Initial Setup

Determine whether to use

no

ROM Correction

 

yes

Step 1

Develop the correct program of the external EEPROM to RAM area

Step 2

Set the ROM correction address setting register and the RC vector table

Step 3

Enable the ROM correction operation

Main Program

Figure 2-7-12 Initial Routine for ROM Correction

ROM Correction

II - 35

Page 87
Image 87
Panasonic F77G, MN101C77C user manual ROM Correction Setup Example, Initial Routine for ROM Correction