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Figure 3-4. Data Memory Addressing ( µ PD78F0066)
FFFFH
Special function
registers (SFRs)
256 × 8 bits
FF20H
FF1FH
FF00H
FEFFH
General registers
32 × 8 bits
FEE0H
FEDFH
Internal high-speed RAM
1024 × 8 bits
FE20H
FE1FH
FB00H
FAFFH
Reserved
FAE0H
FADFH
Internal buffer RAM
32 × 8 bits
FAC0H
FABFH
Reserved
F800H
F7FFH
Internal expansion RAM
4096 × 8 bits
E800H
E7FFH
External memory
10240 × 8 bits
C000H
BFFFH
Flash memory
49152 × 8 bits
0000H
CHAPTER 3 CPU ARCHITECTURE
SFR addressing
Register addressing
Preliminary User's Manual U13420EJ2V0UM00
Short direct
addressing
Direct addressing
Register indirect
addressing
Based addressing
Based indexed
addressing
49
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