M37151 datasheet(2/139 Pages) RENESAS

2 / 139 page

1. DESCRIPTION

The M37151M6/M8/MA/MC/MF-XXXFP and M37151EFFP are

single-chip microcomputers designed with CMOS silicon gate tech-

nology. They have an OSD, data slicer, and I2C-BUS interface, mak-

ing them perfect for TV channel selection systems with a closed cap-

tion decoder. The M37151EFFP has a built-in PROM that can be

written electrically.

2. FEATURES

qNumber of basic instructions .................................................... 71

qMemory size

ROM .............. 24K bytes

(M37151M6-XXXFP)

32K bytes

(M37151M8-XXXFP)

40K bytes

(M37151MA-XXXFP)

48K bytes

(M37151MC-XXXFP)

60K bytes

(M37151MF-XXXFP, M37151EFFP)

RAM ............... 1024 bytes

(M37151M6-XXXFP)

1152 bytes

(M37151M8-XXXFP)

1472 bytes

(M37151MA-XXXFP, M37151MC-XXXFP)

2048 bytes

(M37151MF-XXXFP, M37151EFFP)

(*ROM correction memory included)

qMinimum instruction execution time

................................................................. 0.5

µs (Min.)(at 8 MHz)

qPower source voltage ................................................. 5 V ± 10 %

qSubroutine nesting ............................................. 128 levels (Max.)

qInterrupts ....................................................... 17 types, 16 vectors

q8-bit timers .................................................................................. 6

qProgrammable I/O ports (Ports P0, P1, P2, P30, P31) ............. 25

qSerial I/O ............................................................ 8-bit ✕ 1 channel

qMulti-master I2C-BUS interface .............................. 1 (3 systems)

qA-D comparator (7-bit resolution) ................................ 8 channels

qPWM output circuit ......................................................... 8-bit ✕ 5

qPower dissipation

High-speed mode ............................................................ 165 mW

(at VCC = 5.5V, Oscillation frequency 8 MHz, OSD on, and Data

slicer on)

Low-speed mode ............................................................ 0.33 mW

(at VCC = 5.5V, 32 kHz oscillation frequency)

qClosed caption data slicer

qROM correction function ................................................ 2 vectors

qOSD function

Display characters ................................... 32 characters ✕ 2 lines

(It is possible to display 3 lines or more by software)

Kinds of characters ........................................................ 254 kinds

(coloring unit)

(per charactor unit)

Character display area ............................ CC mode: 16 ✕ 26 dots

OSD mode: 16 ✕ 20 dots

Kinds of character sizes ..................................... CC mode: 1 kind

OSD mode: 8 kinds

Kinds of character colors .................................. 8 colors (R, G, B)

Coloring unit ................... character, character background, raster

Display position

Horizontal: 128 levels

Vertical: 512 levels

Attribute ........................................................................................

CC mode: smooth italic, underline, flash, automatic solid space

OSD mode: border

Smooth roll-up

Window function

3. APPLICATION

TV with closed caption decoder

SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER

and ON-SCREEN DISPLAY CONTROLLER

MITSUBISHI MICROCOMPUTERS

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

Rev. 1.0

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