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CHAPTER 3 CPU ARCHITECTURE
Figure 3-4. Data Memory Addressing (
µ
PD78081)
General Registers
32 × 8 bits
Internal ROM
8192 × 8 bits
Unusable
Internal High-speed RAM
256 × 8 bits
Special Function
Registers (SFRs)
256 × 8 bits SFR Addressing
Register Addressing Short Direct
Addressing
Direct Addressing
Register Indirect
Addressing
Based Addressing
Based Indexed
Addressing
FF20H
FF1FH
FF00H
FEFFH
FEE0H
FEDFH
FE20H
FE1FH
FE00H
FDFFH
2000H
1FFFH
FFFFH
0000H