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.

FEATUREs
• 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 blanking
        italic, underline, vertical scrolling
    – On-screen display (OSD) function 12 × 16 dots, 192 character types, 15 character colors
        2 lines × 24 characters
        frame background 8 colors/ half blanking
        background on full screen 15 colors/ half blanking
        edging and vertical scrolling for every line
        jitter elimination circuit
        sprite OSD, 12 × 16 dots, 1 screen, 8 colors for every dot
    – I2C bus interface
    – PWM output 8 bits, 8 channels
    – Remote control reception circuit 8-bit pulse measurement counter, 6-stage FIFO
    – HSYNC counter 2 channels
    – Watchdog timer
• Interruption 15 factors, 15 vectors, multi-interruption possible
• Standby mode Sleep
• Package 64-pin plastic SDIP/QFP
• Piggyback/evaluator CXP85890A 64-pin ceramic PSDIP (Supports custom font)