UPD78320 Datasheet, PDF (19/88 Pages) NEC – 16/8-BIT SINGLE-CHIP MICROCONTROLLER

Figure 2-1. Memory Map
FFFFH
FF00H
FEFFH
FE00H
Data Memory _FDFFH
FC80H
FC7FH
EA = H
(µPD78322)
Special Function Register
(SFR)
(256 × 8)
Main RAM
(256 × 8)
Peripheral RAM
(384 × 8)
FEFFH
FE80H
General Register
(128 × 8)
FE2BH
Macro Service Control
FE06H
(36 × 8)
FC80H
Data Area
(640 × 8)
EA = L


•
µPD78320
 • µPD78322 ROM-Less Mode
Memory Space
(64K × 8) Program Memory
Data Memory
External Memory^Note
(48256 × 8)
4000H
3FFFH
Program Memory
Data Memory
Internal ROM
(16384 × 8)
3FFFH
1000H
0FFFH
0800H
07FFH
0080H
007FH
0040H
003FH
Program Area
CALLF Instruction Entry Area
(2048 × 8)
Program Area
CALLT Instruction Table Area
(64 × 8)
External Memory
(64640 × 8)
0FFFH
0000H
0000H
Vector Table Area
(64 × 8)
0000H
Note Accessed in external memory expansion mode.
Caution For word access (including stack operations) to the main RAM area (FE00H-FEFFH), the address
that specifies the operand must be an even value.