Chapter 3 Cpu Architecture; Memory Space - NEC 78K0S/KU1+ User Manual

3.1 Memory Space

The 78K0S/KU1+ can access up to 64 KB of memory space. Figures 3-1 to 3-3 show the memory maps.
F F F F H
F F 0 0 H
F E F F H
F E 8 0 H
F E 7 F H
Data memory
space
0 4 0 0 H
0 3 F F H
Program memory
space
0 0 0 0 H
Remark The option byte and protect byte are 1 byte each.
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CHAPTER 3 CPU ARCHITECTURE

Figure 3-1. Memory Map (
Special function registers
(SFR)
256 × 8 bits
Internal high-speed RAM
128 × 8 bits
Use prohibited
Flash memory
1,024 × 8 bits
User's Manual U18172EJ2V0UD
µ
PD78F9200)
0 3 F F H
0 0 8 2 H
0 0 8 1 H Protect byte area
0 0 8 0 H
Option byte area
0 0 7 F H
CALLT table area
0 0 4 0 H
0 0 3 F H
0 0 1 4 H
0 0 1 3 H
Vector table area
0 0 0 0 H
Program area
Program area