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D78F9189CT

UPD78F9189CT, D78F9189CT / 8-Bit Single-chip Microcontroller

NEC => Renesas Technology 

CHAPTER 3 CPU ARCHITECTURE

CHAPTER 3 CPU ARCHITECTURE

3.1 Memory Space

Products in the µPD789188 and 78F9189 Subseries can each access up to 64 Kbytes of memory space.

Figures 3-1 through 3-2 show the memory maps.

Figure 3-1. Memory Map (µPD789188)

FFFFH

Special function registers

256 × 8 bits

FF00H

FEFFH

Internal high-speed RAM

512 × 8 bits

FD00H

FCFFH

Data memory space

4000H

3FFFH

Reserved

3FFFH

Program area

Program memory

space

Internal ROM

16,384 × 8 bits

0000H

0080H

007FH

0040H

003FH

0024H

0023H

0000H

CALLT table area

Program area

Vector table area

30

User’s Manual 2nd edition

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