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4.2 Memory Maps
Figure 4.1 shows memory maps of the MCU and the PROM programmer.
Figure 4.1 Memory maps
*1: This area is fixed to "1" on the PROM programmer.
*2: Set "FFh".
*3: When writing, the lower 5 bits and the upper 5 bits are divided and then written into
the MCU.
*4: When reading, "1" is read out.
ROM capacity ZZZZZ XXXX YYYY
E4 4,096 0FFF 4FFF
E8 8,192 1FFF 5FFF
ED 16,384 3FFF 7FFF
MCUPROM programmer
0000h
3FFFh
XXXXh
*1
*1
*2
*2
3FFFh
4000h
YYYYh
7FFFh
Upper 5 bits
Lower 5 bits
XXXXh
Programming area*
3
(10 bits x ZZZZZ words)
Unused area*
4
0000h