MTV112A

www.DataSheet4U.com MYSON TECHNOLOGY MTV112A (Rev 1.9) 8051 Embedded CRT Monitor Controller MASK Version FEATURES l l l l l l l l l l l l l l 8051 core. 384-bytes internal RAM. 16K-bytes program Mask ROM. 14-channels 10V open-drain PWM DAC, 10 dedicated channels and 4 channels shared with I/O pin. 28 bi-direction I/O pin,12 dedicated pin,12 shared with DAC,4 shared with DDC/IIC interface. 5-output pin shared with H/V sync output and self test output pins. SYNC processor for composite separation, polarity and frequency check, and polarity adjustment. Built-in monitor self-test pattern generator. Built-in low power reset circuit. One slave mode IIC interface and one master mode IIC interface. IIC interface for DDC1/DDC2B and EEPROM; only one EEPROM needed to store DDC1/DDC2B and display mode information. Dual 4-bit ADC or 4 channel 6-bit ADC. Watchdog timer with programmable interval. 40-pin PDIP and 44-pin PLCC package. GENERAL DESCRIPTION The MTV112A micro-controller is an 8051 CPU core embedded device specially tailored to CRT monitor applications. It includes an 8051 CPU core, 384-byte SRAM, 14 built-in PWM DACs, DDC1/DDC2B interface, 24Cxx series EEPROM interface, A/D converter and a 16K-bytes internal program Mask ROM. BLOCK DIAGRAM STOUT P1.0-7 X1 P0.0-7 RD WR P0.0-7 RD WR XFR HSYNC H / VSYNC CONTROL VSYNC HBLANK VBLANK X2 8051 CORE INT 1 RST WATCH-DOG TIMER RST P2.0-3 P3.0-P3.2 14 CHANNEL PWM DAC DA0-9 DA10-13 P3.4 P2.4-7 ADC AD0 AD1 HSCL HSDA D...