MTV012A

MYSON TECHNOLOGY MTV012A 8051 Embedded CRT Monitor Controller Mask Version FEATURES 8051 core. 256 bytes internal RAM. 8K bytes program Mask ROM. 14 channels 10V 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 pins shared with H/V sync output and self test output pins. SYNC processor for composite sync separation, polarity and frequency check, and polarity adjustment. 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 MTV012A 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 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 INT1 WATCH-DOG TIMER RST P2.0-3 P3.0-P3.2 RST 14 CHANNEL PWM DAC DA0-9 DA10-13 P3.4 P2.4-7 HSCL HSDA DDC 1/2 B & FIFO INTERFACE ISCL IIC INTERFACE ISDA This datasheet contains new product information. Myson Technology reserves the rights to modify the product specification without notice. No liability is as...