M37274EFSP datasheet(2/148 Pages) RENESAS

2 / 148 page

DESCRIPTION

The M3727EFSP is a single-chip microcomputer designed with CMOS

silicon gate technology. It is housed in a 52-pin shrink plastic molded

DIP.

In addition to their simple instruction sets, the ROM, RAM and I/O

addresses are placed on the same memory map to enable easy pro-

gramming.

The M3727EFSP has a OSD function and a data slicer function, so it

is useful for a channel selection system for TV with a closed caption

decoder.

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

and ON-SCREEN DISPLAY CONTROLLER

PRELIMINARY

Notice:

This

is not

a final

specification.

Some

paramentic

limits

are

subject

to change.

MITSUBISHI MICROCOMPUTERS

M37274EFSP

• OSD function

Display characters ............................... 40 characters ! 16 lines

Kinds of characters ..................................................... 256 kinds

(In EXOSD mode, they can be combined with 16 kinds of extra

fonts)

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

OSD mode : 16 ! 20 dots

EXOSD mode : 16 ! 26 dots

Kinds of character sizes ............................... CC mode : 2 types

OSD mode : 14 types

EXOSD mode : 6 types

Kinds of character background colors

CC mode : 7 kinds (a character unit)

OSD mode : 7 kinds (a character unit)

EXOSD mode : 5 kinds (a character unit)

It can be specified by a screen unit (maximum 7 kinds).

Extra font coloring, raster coloring, border coloring

Kinds of character colors ............... CC mode : 7 kinds (R, G, B)

OSD mode : 7 kinds (R, G, B)

EXOSD mode : 5 kinds (R, G, B)

Display position

Horizontal ................................................................ 256 levels

Vertical .................................................................. 1024 levels

Attribute ...................... CC mode : smooth italic, underline, flash

OSD mode : border

EXOSD mode : border,

extra font (16 kinds)

Automatic solid space function

Window function

Dual layer OSD function

APPLICATION

TV with a closed caption decoder

FEATURES

• Number of basic instructions ..................................................... 71

• Memory size

ROM ....................................................... 60 K bytes

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

ROM correction memory ............................. 64 bytes

ROM for OSD ....................................... 11072 bytes

RAM for OSD .......................................... 1920 bytes

• Minimum instruction execution time

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

µs (at 8 MHz oscillation frequency)

• Power source voltage...................................................5 V ± 10 %

• Subroutine nesting ............................................. 128 levels (Max.)

• Interrupts ....................................................... 18 types, 16 vectors

• 8-bit timers .................................................................................. 6

• Programmable I/O ports (Ports P0, P1, P2, P30, P31) .............. 26

• Input ports (Ports P40–P46, P63, P64, P70–P72) ...................... 12

• Output ports (Ports P52–P55)...................................................... 4

• 12 V withstand ports.................................................................... 7

• LED drive ports ........................................................................... 2

• Serial I/O ............................................................ 8-bit ! 1 channel

• Multi-master I2C-BUS interface ................................1 (2 systems)

• A-D converter (8-bit resolution) .................................... 6 channels

• PWM output circuit ......................................... 14-bit ! 1, 8-bit ! 7

• Power dissipation

In high-speed mode .......................................................... 165mW

(at VCC = 5.5V, 8MHz oscillation frequency, CRT on, and Data

slicer on)

In low-speed mode ........................................................... 0.33mW

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

• Data slicer

• ROM correction function

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