Data Memory Addressing ( Μ Pd780205 And Μ Pd780205A) - NEC mPD780208 Subseries User Manual

Figure 3-7. Data Memory Addressing ( µ PD780205 and µ PD780205A)
FFFFH
Special-function registers (SFRs)
256 x 8 bits
FF20H
FF1FH
FF00H
FEFFH
General-purpose registers
32 x 8 bits
FEE0H
FEDFH
Internal high-speed RAM
1024 x 8 bits
FE20H
FE1FH
FB00H
FAFFH
Buffer RAM
64 x 8 bits
FAC0H
FABFH
Reserved
FA80H
FA7FH
VFD display RAM
80 x 8 bits
FA30H
FA2FH
Reserved
A000H
9FFFH
Internal ROM
40960 x 8 bits
0000H
56
CHAPTER 3 CPU ARCHITECTURE
SFR addressing
Register addressing
User's Manual U11302EJ4V0UM
Short direct
addressing
Direct addressing
Register indirect addressing
Based addressing
Based indexed addressing