UPD178004 데이터 시트보기 (PDF) - NEC => Renesas Technology

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UPD178004

8-BIT SINGLE-CHIP MICROCONTROLLER

NEC => Renesas Technology 

µPD178004, 178006, 178016, 178018

4. MEMORY SPACE

Figure 4-1 shows the µPD178004, 178006, 178016 and 178018 memory map.

Figure 4-1. Memory Map

FFFFH

FF00H

FEFFH

FEE0H

FEDFH

Special Function Registers

(SFR) 256 × 8 bits

General-Purpose

Registers

32 × 8 bits

FB00H

FAFFH

Data Memory

Space

FAE0H

FADFH

FAC0H

FABFH

Internal High-Speed

RAM

1024 × 8 bits

Use Prohibited

Buffer RAM 32 × 8 bits

Use Prohibited

nnnnH + 1

nnnnH

Program Memory

Space

0000H

Internal ROMNote 3

FABFH

Use Prohibited

F800H

F7FFH

Internal Expanded RAM

2048 × 8 bits

Note 1

F000H

EFFFH

Use ProhibitedNote 2

nnnnH+1

nnnnH

1000H

0FFFH

0800H

07FFH

0080H

007FH

0040H

003FH

0000H

Program Area

CALLF Entry Area

Program Area

CALLT Table Area

Vectored Table Area

Notes 1. Available only for µPD178016 and 178018

2. The µPD178018 does not contain this use prohibited area.

3. The internal ROM capacity depends on the version (see the table below).

Corresponding Product

Name

µPD178004

µPD178006, 178016

µPD178018

Internal ROM Last Address

nnnnH

7FFFH

BFFFH

EFFFH

14

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