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Chapter 3 cpu architecture, 1 memory spaces – IBM uPD78082 User Manual

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CHAPTER 3 CPU ARCHITECTURE

CHAPTER 3 CPU ARCHITECTURE

3.1 Memory Spaces

Figures 3-1 to 3-3 shows memory maps.

Figure 3-1. Memory Map (

µ

PD78081)

Data memory
space

General Registers

32

×

8 bits

Internal ROM

8192

×

8 bits

CALLF Entry Area

CALLT Table Area

Vector Table Area

Program Area

Program Area

Unusable

Program
memory
space

Internal High-speed RAM

256

×

8 bits

Special Function
Registers (SFRs)

256

×

8 bits

F F 0 0 H
FEFFH

FEE0H
FEDFH

F E 0 0 H
FDFFH

2 0 0 0 H
1 F F F H

0 0 0 0 H

1 F F F H

0 0 0 0 H

1 0 0 0 H
0 F F F H

0 8 0 0 H
0 7 F F H

0 0 8 0 H
0 0 7 F H

0 0 4 0 H
0 0 3 F H

FFFFH

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