CXP85840A

CXP85840A/85848A/85856A CMOS 8-bit Single Chip Microcomputer Description The CXP85840A/85848A/85856A are the CMOS 8-bit microcomputer integrating on a single chip an A/D converter, serial interface, timer/counter, time-base timer, closed caption decoder, data slicer, on-screen display function, I2C bus interface, PWM output, remote control reception circuit, HSYNC counter and watchdog timer, besides the basic configurations of 8-bit CPU, ROM, RAM, I/O ports. The CXP85840A/85848A/85856A also provide a power-on reset function and sleep function that enables to lower the power consumption. 64 pin SDIP (Plastic) 64 pin QFP (Plastic) Structure Features Silicon gate CMOS IC A wide instruction set (213 instructions) which covers various types of data – 16-bit operation/multiplication and division/Boolean bit operation instructions Minimum instruction cycle 333ns at 12MHz operation Incorporated ROM 40K bytes (CXP85840A) 48K bytes (CXP85848A) 56K bytes (CXP85856A) Incorporated RAM 2176 bytes (Excludes closed caption decoder and VRAM for on-screen display) Peripheral functions – A/D converter 8-bit 6-channel successive approximation method (Conversion time of 26.7µs at 12MHz) – Serial interface 8-bit clock sync type, 1 channel – Timer 8-bit timer 8-bit timer/counter 19-bit time-base timer – Closed caption decoder Data slicer Corresponds to FCC (EDS supported), 8 × 13 dots, 192 character types 15 character colors, 4 lines × 34 characters frame background 15 colors/ half blank...