Data Memory Addressing ( Pd78056, 78056Y) - NEC PD78052 User Manual

Figure 5-14. Data Memory Addressing ( PD78056, 78056Y)
FFFFH
Special Function
Registers (SFRs)
256
FF20H
FF1FH
FF00H
FEFFH
General Registers
32 8 bits
FEE0H
FEDFH
Internal High-speed RAM
1024
FE20H
FE1FH
FB00H
FAFFH
Reserved
FAE0H
FADFH
Internal Buffer RAM
32
FAC0H
FABFH
Reserved
FA80H
FA7FH
External Memory
14976
C000H
BFFFH
Internal ROM
49152
0000H
106
CHAPTER 5 CPU ARCHITECTURE
SFR Addressing
8 bits
Register Addressing
8 bits
8 bits
8 bits
8 bits
Short Direct
Addressing
Direct Addressing
Register Indirect
Addressing
Based Addressing
Based Indexed
Addressing