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CHAPTER 3 CPU ARCHITECTURE
CHAPTER 3 CPU ARCHITECTURE3.1 Memory Spaces

Figures 3-1 to 3-3 shows memory maps.

Figure 3-1. Memory Map (

µ

PD78081)

Data memory
space
General Registers
32 × 8 bits
Internal ROM
8192 × 8 bits
CALLF Entry Area
CALLT Table Area
Vector Table Area
Program Area
Program Area
Unusable
Program
memory
space
Internal High-speed RAM
256 × 8 bits
Special Function
Registers (SFRs)
256 × 8 bits
FF00H
FEFFH
FEE0H
FEDFH
FE00H
FDFFH
2000H
1FFFH
0000H
1FFFH
0000H
1000H
0FFFH
0800H
07FFH
0080H
007FH
0040H
003FH
FFFFH