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F
F
F
F
H
Special function registers (SFR)
256 × 8 bits
F
F
2
0
H
F
F
1
F
H
F
F
0
0
H
F
E
F
F
H
General-purpose registers
32 × 8 bits
F
E
E
0
H
F
E
D
F
H
Internal high-speed RAM
1024 × 8 bits
F
E
2
0
H
F
E
1
F
H
F
B
0
0
H
F
A
F
F
H
Reserved
6
0
0
0
H
5
F
F
F
H
Internal ROM
24576 × 8 bits
0
0
0
0
H
56
CHAPTER 3 CPU ARCHITECTURE
Figure 3-8. Data Memory Addressing ( µ µ µ µ PD780123)
SFR addressing
Register addressing
Preliminary User's Manual U16315EJ1V0UD
Short direct
addressing
Direct addressing
Register indirect addressing
Based addressing
Based indexed addressing
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