User's Manual U11919EJ3V0UM00
41
CHAPTER 3 CPU ARCHITECTURE
3.1 Memory Space
The
µ
PD789026 Subseries can access 64 Kbytes of memory space. Figures 3-1 through 3-5 show the memory
maps.
Figure 3-1. Memory Map (
µµµµ
PD789022)
FFFFH
FF00H
FEFFH
FE00H
FDFFH
1000H
0FFFH
0000H
0FFFH
0000H
0080H
007FH
0040H
003FH
002CH
002BH
Data
Memory Space
Program
Memory Space
Special Function Registers
256
×
8 bits
Internal High-Speed RAM
256
×
8 bits
Reserved
Internal ROM
4,096
×
8 bits
Program Area
CALLT Table Area
Program Area
Vector Table Area
Summary of Contents for mPD789026 Subseries
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