MYSON

TECHNOLOGY

MTV012E

8051 Embedded CRT Monitor Controller

OTP Version

This datasheet contains new product information. Myson Technology reserves the rights to modify the product specification

without notice. No liability is assumed as a result of the use of this product. No rights under any patent accompany the sale of the

product.

MTV012E Revision 1.2 12/23/1998

1/14

FEATURES

8051 core.

256 bytes internal RAM.

8K bytes program EPROM.

14 channels 12V open drain PWM DAC, 10 dedicated channels and 4 channels shared with I/O pin.

20 bi-direction I/O pin, 12 dedicated pin, 4 shared with DAC, 4 shared with DDC/IIC interface.

3 output pin shared with H/V sync output and self test output pins.

SYNC processor for composite separation, polarity and frequency check, and polarity adjust.

Built-in monitor self test pattern generator.

Built-in Low Power Reset circuit.

IIC interface for DDC1/DDC2B and EEPROM, only one EEPROM needed to store DDC1/DDC2B and

display mode information.

Watch dog timer with programmable interval.

40 pin PDIP package.

GENERAL DESCRIPTION

The MTV012E micro-controller is an 8051 CPU core-embedded device specially tailored to CRT monitor

applications. It includes an 8051 CPU core, 256-byte SRAM, 14 built-in PWM DACs, DDC1/DDC2B

interface, 24Cxx series EEPROM interface and an 8K-byte internal program EPROM.

BLOCK DIAGRAM

XFR

8051

CORE

P1.0-7

X1

X2

P2.0-3

P3.0-P3.2

P3.4

P0.0-7

RD

WR

INT1

RST

P2.4-7

RD

WR

P0.0-7

WATCH-DOG

TIMER

RST

H/VSYNC

CONTROL

HSYNC

VSYNC

HBLANK

VBLANK

STOUT

14 CHANNEL

PWM DAC

DDC 1/2 B & FIFO

INTERFACE

HSCL

HSDA

IIC INTERFACE

ISDA

ISCL

DA10-13

DA0-9