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CHAPTER 3 CPU ARCHITECTURE
User’s Manual U15104EJ2V0UD
Figure 3-6. Data Memory Addressing of
µ
PD178F054
F F F F H
F F 2 0 H
F F 1 F H
F F 0 0 H
F E F F H
F E E 0 H
F E D F H
F E 2 0 H
F E 1 F H
F B 0 0 H
F A F F H
8 0 0 0 H
7 F F F H
0 0 0 0 H
Special function
registers (SFRs)
256
×
8 bits
Internal high-speed RAM
1024
×
8 bits
General-purpose registers
32
×
8 bits
Reserved
Flash memory
32768
×
8 bits
SFR addressing
Register addressing
Short direct
addressing
Direct addressing
Register indirect
addressing
Based addressing
Based indexed
addressing