M37477M8 View Datasheet(PDF) - MITSUBISHI ELECTRIC

Part Name

Description

MFG CO.

M37477M8

SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER

MITSUBISHI ELECTRIC  

MITSUBISHI MICROCOMPUTERS

7477/7478 GROUP

SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER

MEMORY

• Special Function Register (SFR) Area

The special function register (SFR) area contains the registers

relating to functions such as I/O ports and timers.

• RAM

RAM is used for data storage as well as a stack area.

• ROM

ROM is used for storing user programs as well as the interrupt

vector area.

• Interrupt Vector Area

The interrupt vector area is for storing jump destination ad-

dresses used at reset or when an interrupt is generated.

• Zero Page

Zero page addressing mode is useful because it enables access

to this area with fewer instruction cycles.

• Special Page

Special page addressing mode is useful because it enables ac-

cess to this area with fewer instruction cycles.

RAM (192 bytes)

for

M37477M4

M37477M8/E8

M37478M4

M37478M8/E8

RAM (192 bytes)

for

M37477M8/E8

M37478M8/E8

000016

00BF16

00FF16

010016

01BF16

SFR area

Zero

page

Not used

ROM (16K bytes)

for

M37477M8/E8

M37478M8/E8

ROM (8K bytes)

for

M37477M4

M37478M4

C00016

E00016

FF0016

FFE816

FFFF16

Interrupt vector area

Special

page

Fig. 2 Memory map

9

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