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CHAPTER 3 CPU ARCHITECTURE
User’s Manual U15075EJ2V1UD
55
Figure 3-8. Data Memory Addressing (
µ
PD789426, 789436)
Special function registers (SFRs)
256
×
8 bits
Internal high-speed RAM
512
×
8 bits
Internal ROM
16384
×
8 bits
FFFFH
0000H
Direct addressing
Register indirect
addressing
Based addressing
FF00H
FEFFH
FF20H
FF1FH
FE20H
FE1FH
SFR addressing
Short direct
addressing
LCD display RAM
5
×
4 bits
Reserved
Reserved
FD00H
FCFFH
FA00H
F9FFH
4000H
3FFFH
FA05H
FA04H