NEC uPD78056Y User Manual
Page 98
98
CHAPTER 5 CPU ARCHITECTURE
Figure 5-8. Memory Map (
µ
PD78P058,
µ
PD78P058Y)
Note
When internal PROM size is 60K bytes, the area F000H to F3FFH cannot be used. F000H to F3FFH
can be used as external memory by setting the internal PROM size to less than 56K bytes by the
memory size switching register (IMS).
0000H
Data memory
space
General Registers
32
×
8 bits
Internal PROM
61440
×
8 bits
EFFFH
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
×
8 bits
Reserved
Program
memory
space
F000H
EFFFH
F800H
F7FFH
FAC0H
FABFH
FAE0H
FADFH
FEE0H
FEDFH
FF00H
FEFFH
FFFFH
Internal High-speed RAM
1024
×
8 bits
Special Function
Registers (SFRs)
256
×
8 bits
Internal
Expansion RAM
1024
×
8 bits
F400H
F3FFH
Reserved
FB00H
FAFFH
Reserved
Note