UPD178016GC datasheet(14/56 Pages) NEC

14 / 56 page

µPD178004, 178006, 178016, 178018

4. MEMORY SPACE

Figure 4-1 shows the

µPD178004, 178006, 178016 and 178018 memory map.

Figure 4-1. Memory Map

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

Internal ROM Last Address

Name

nnnnH

µPD178004

7FFFH

µPD178006, 178016

BFFFH

µPD178018

EFFFH

Special Function Registers

(SFR) 256

× 8 bits

General-Purpose

Registers

× 8 bits

Internal High-Speed

RAM

1024

× 8 bits

Use Prohibited

Buffer RAM 32

× 8 bits

Use Prohibited

Internal ROMNote 3

Data Memory

Space

Program Memory

Space

FFFFH

FF00H

FEFFH

FEE0H

FEDFH

FB00H

FAFFH

FAE0H

FADFH

FAC0H

FABFH

nnnnH + 1

nnnnH

0000H

Use Prohibited

Internal Expanded RAM

2048

× 8 bits

Use ProhibitedNote 2

FABFH

F800H

F7FFH

F000H

EFFFH

nnnnH+1

Program Area

CALLF Entry Area

Program Area

CALLT Table Area

Vectored Table Area

nnnnH

1000H

0FFFH

0800H

07FFH

0080H

007FH

0040H

003FH

0000H

Note 1

UPD178016GC Datasheet(PDF) 14 Page - NEC

UPD178016GC Datasheet(HTML) 14 Page - NEC

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