User’s Manual U17446EJ3V1UD
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CHAPTER 3 CPU ARCHITECTURE
3.1 Memory
Space
The 78K0S/KB1+ can access up to 64 KB of memory space. Figures 3-1 and 3-2 show the memory maps.
Figure 3-1. Memory Map (
μ
PD78F9232)
Special function registers
(SFR)
256
×
8 bits
Internal high-speed RAM
256
×
8 bits
Flash memory
4,096
×
8 bits
Use prohibited
Program memory
space
Data memory
space
Program area
Option byte area
Program area
CALLT table area
Vector table area
F F F F H
0 F F F H
0 0 8 0 H
0 0 7 F H
0 0 8 2 H
0 0 8 1 H
0 0 4 0 H
0 0 3 F H
0 0 2 2 H
0 0 2 1 H
0 0 0 0 H
F F 0 0 H
F E F F H
F E 0 0 H
F D F F H
1 0 0 0 H
0 F F F H
0 0 0 0 H
Protect byte area
Remark
The option byte and protect byte are 1 byte each.
