Description
The CXP85632/85640 is a CMOS 8-bit microcomputer which consists of 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 receiver, HSYNC counter and watchdog timer as well as basic configuration like 8-bit CPU, ROM, RAM and I/O port.
Also this IC provides power-on reset function and sleep function which enables to lower power consumption.

Features
• A wide instruction set (213 instructions) to cover various types of data.
    — 16-bit arithmetic/multiplication and division/boolean bit operation instructions
• Minimum instruction cycle 333ns at 12MHz operation
• Incorporated ROM 32K bytes (CXP85632) 40K bytes (CXP85640)
• Incorporated RAM 1888 bytes (excluding the closed caption decoder and on-screen display VRAM)
• Peripheral functions
    — A/D converter 8 bits, 6 channels, successive approximation method (Conversion time of 26.7µs/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
        Incorporated decode slicer,
        conforming to FCC, 8 × 13 dots, 192 character types, 15 character colors,
        4 lines of 34 characters, italic, underline, vertical scroll,
        15 frame background colors/half blanking
    — On-screen display (OSD) function
        12 × 16 dots, 128 character types, 15 character colors, 4 lines of 24 characters,
        8 frame background colors/half blanking, edging per line (half dot), vertical scroll
        jitter elimination circuit
    — I2C bus interface
    — PWM output 8 bits, 4 channels
    — Remote control receiver circuit
        Incorporated 6-stage FIFO 8-bit pulse measurement counter
    — HSYNC counter 2 channels
    — Watchdog timer
• Interruption 15 factors, 15 vectors, multi-interruption possible
• Standby mode SLEEP
• Package 64-pin plastic SDIP/QFP
• Piggyback/evaluation chip CXP85690 64-pin ceramic PSDIP (accommodates custom font)