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5.1 Memory Spaces
The µ PD78014 and 78014Y Subseries can each access a memory space of 64 Kbytes. Figures 5-1 to 5-5 show
memory maps.
Data Memory
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Space
CHAPTER 5 CPU ARCHITECTURE
CHAPTER 5 CPU ARCHITECTURE
Figure 5-1. Memory Map ( µ PD78011B, 78011BY)
FFFFH
Special Function
Registers (SFR)
256 × 8 bits
F F 0 0 H
General Registers
FEFFH
32 × 8 bits
FEE0H
FEDFH
Internal High-Speed RAM
512 × 8 bits
FD00H
FCFFH
Use Prohibited
FAE0H
FADFH
Buffer RAM
FAC0H
FABFH
Use Prohibited
FA80H
FA7FH
External Memory
55936 × 8 bits
2 0 0 0 H
Program
Memory
1FFFH
Space
Internal ROM
8192 × 8 bits
0 0 0 0 H
32 × 8 bits
1FFFH
Program Area
1000H
0FFFH
CALLF Entry Area
0800H
07FFH
Program Area
0080H
007FH
CALLT Table Area
0040H
003FH
Vector Table Area
0000H
95
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