Chapter 5 cpu architecture, 1 memory spaces – NEC uPD78P078 User Manual
Page 101
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101
0000H
Data memory
space
General Registers
32 x 8 bits
Internal ROM
49152 x 8 bits
BFFFH
1000H
0FFFH
0800H
07FFH
0080H
007FH
0040H
003FH
0000H
CALLF Entry Area
CALLT Table Area
Vector Table Area
Program Area
Program Area
Internal Buffer RAM
32 x 8 bits
External Memory
13312 x 8 bits
Reserved
Program
memory
space
C000H
BFFFH
F800H
F7FFH
FAC0H
FABFH
FAE0H
FADFH
FEE0H
FEDFH
FF00H
FEFFH
FFFFH
Internal High-speed RAM
1024 x 8 bits
Special Function
Registers (SFRs)
256 x 8 bits
Internal
Expansion RAM
1024 x 8 bits
F400H
F3FFH
Reserved
FB00H
FAFFH
CHAPTER 5 CPU ARCHITECTURE
5.1 Memory Spaces
The
µ
PD78078 and 78078Y Subseries allow access to a memory space of 64 Kbytes. Figures 5-1 to 5-3 shows
memory maps.
Figure 5-1. Memory Map (
µ
PD78076, 78076Y)
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