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