Chapter 5 Cpu Architecture; Memory Spaces; Memory Map ( Pd78052, 78052Y) - NEC PD78052 User Manual

5.1 Memory Spaces

Each product of the PD78054 and 78054Y Subseries can access the memory space of 64 Kbytes. Figures 5-1
to 5-8 show memory maps.
Data memory
space
Program
memory
space

CHAPTER 5 CPU ARCHITECTURE

Figure 5-1. Memory Map ( PD78052, 78052Y)
FFFFH
Special Function
Registers (SFRs)
256 8 bits
FF00H
FEFFH
General Registers
32 8 bits
FEE0H
FEDFH
Internal High-speed RAM
512 8 bits
FD00H
FCFFH
Reserved
FAE0H
FADFH
Internal Buffer RAM
32 8 bits
FAC0H
FABFH
Reserved
FA80H
FA7FH
External Memory
47744 8 bits
4000H
3FFFH
Internal ROM
16384 8 bits
0000H
3FFFH
Program Area
1000H
0FFFH
CALLF Entry Area
0800H
07FFH
Program Area
0080H
007FH
CALLT Table Area
0040H
003FH
Vector Table Area
0000H
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