M37151M6 datasheet(12/138 Pages) RENESAS

Part #	M37151M6

Description	SNGLE-CHIP 8-BIT CMOS MICROCOMPUTER

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Manufacturer	RENESAS [Renesas Technology Corp]

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M37151M6/M8/MA/MC/MF-XXXFP, M37151EFFP

Rev.1.00

Nov 01, 2002

page 12 of 136

REJ03B0129-0100Z

8.2 MEMORY

8.2.1 Special Function Register (SFR) Area

The special function register (SFR) area in the zero page contains

control registers such as I/O ports and timers.

8.2.2 RAM

RAM is used for data storage and for stack area of subroutine calls

and interrupts.

8.2.3 ROM

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

area.

8.2.4 OSD RAM

RAM for display is used for specifying the character codes and col-

ors to display.

8.2.5 OSD ROM

ROM for display is used for storing character data.

8.2.6 Interrupt Vector Area

The interrupt vector area contains reset and interrupt vectors.

8.2.7 Zero Page

The zero page addressing mode can be used to specify memory and

register addresses in the zero page area. Access to this area with

only 2 bytes is possible in the zero page addressing mode.

8.2.8 Special Page

The special page addressing mode can be used to specify memory

addresses in the special page area. Access to this area with only 2

bytes is possible in the special page addressing mode.

8.2.9 ROM Correction Memory (RAM)

This is used as the program area for ROM correction.

Fig. 8.2.1 Memory Map (M37151M6/M8/MA/MC/MF-XXXFP, M37151EFFP)

000016

00C016

00FF16

SFR1 area

Not used

FFFF16

FFDE16

FF0016

Interrupt vector area

Special page

087F16

080016

OSD RAM

(128 bytes)

Zero page

020016

020F16

SFR2 area

Not used

030016

00BF16

010016

01FF16

05BF16

053F 16

Not used

0B3F16

090016

100016

Not used

ROM correction function

Vector 1: address 030016

Vector 2: address 0320 16

032016

06FF16

6000 16

8000 16

A00016

4000 16

M37151MF-XXXFP,

M37151EFFP

ROM

(60K bytes)

M37151MC-XXXFP

ROM

(48K bytes)

M37151MA-XXXFP

ROM

(40K bytes)

M37151M8-XXXFP

ROM

(32K bytes)

1000016

1FFFF16

Not used

s M37151M6/M8/MA/MC/MF-XXXFP, M37151EFFP

M37151M6-XXXFP

ROM

(24K bytes)

13BFF16

11400 16

OSD ROM

(10K bytes)

(See note)

Not used

M37151MF-XXXFP,

M37151EFFP

RAM

(2048 bytes)

M37151MB-XXXFP

RAM

(1152 bytes)

M37151MA/MC-

XXXFP

RAM

(1472 bytes)

M37151M6-

XXXFP

RAM

(1024 bytes)

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