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Specification

Overview

  • General Description

    This is an 8-bit CID (Call Identification) RISC type microprocessor with low power, high speed CMOS technology. Integrated onto a single chip are on-chip watchdog (WDT), RAM, ROM, programmable real time clock/counter, internal interrupt, power down mode, LCD driver, Energy Detector (DED), Tone generator, ASPCM voice synthesizer (decoder), voice ROM, Current DAC and tri-state I/O. It provides a single chip solution to design a CID of calling message display.

  • Features & Benefits

    • Operating voltage range

      • 2.2V~3.6V (Normal mode under 447.829KHz~14.331MHz)
      • 2.2V~3.6V (Sleep/Green mode)

    • CPU

      • 8-bit RISC kernel
      • 99.9% single instruction cycle commands

    • Clock

      • 32.768KHz clock source
      • Built-in PLL to generate main clock 3.5826MHz x 0.125, 0.25, 0.5, 1, 2, 3, or 4

    • Timer and counter

      • Watchdog timer: Programmable free running on chip watchdog timer
      • TCC: 8-bit real time clock/counter (TCC) with 8-bit prescaler
      • COUNTER1: 8-bit counter with 8-bit prescaler can be an interrupt source
      • COUNTER2: 8-bit counter with 8-bit prescaler can be an interrupt source

    • Memory

      • 16K x 13 on-chip program ROM
      • 40K x 5 on-chip voice ROM (the max. timing from voice ROM enable to its data finish = 1.25µs)
      • 0.5K x 8 on-chip CID RAM
      • 144 x 8 common registers

    • I/O

      • Up to 26 bi-directional tri-state I/O ports (18 independent I/O)
      • IO with internal Pull high, wake-up and interrupt functions

    • Operation mode

      • Three modes can be selected. (Main clock is generated by internal PLL)
      • Sleep mode: CPU, main clock and 32.768KHz clock turn off
      • Green mode: main clock turn off, CPU and 32.768KHz clock turn on
      • Normal mode: CPU, main clock and 32.768KHz clock turn on

    • Interrupt

      • Selective signal sources and overflow interrupt
      • STACK: 8 level stack for subroutine nesting
      • 8 interrupt source, 4 external, 4 internal

    • Reset

      • Power on reset, /POVD reset (by code option) or external /RESET pin

    • Programmable Tone Generators

      • Programmable Tone1 and Tone2 generators
      • Independent single tone generation for Tone1 and Tone2
      • Mixed dual tone generation by Tone1 and Tone2 with 2dB difference
      • Can be programmed for DTMF tone generation

    • DAC

      • 8-bit current DAC
      • Can be accessed by ASPCM hardware or from DAC input register

    • CID

      • Differential-input Energy Detector (DED) for line energy detection

    • CID number telling

      • Voice ROM can be accessed by ASPCM hardware or directly accessed by software
      • ASPCM maximum sampling rate up to 16KHz
      • About 6 sec ASPCM voice data for 6.5536KHz sampling rate
      • Voice output by 8-bit current DAC

    • LCD

      • LCD operation voltage chosen by software
      • Common driver pins: 8 (COM0~COM7) or 4 (COM0~COM3)
      • Segment driver pins: 24 (SEG0~SEG23)
      • 1/4 bias
      • 1/8 duty or 1/4 duty

    • Die Form

      • Available, Please contact Elan Sales

  • Data Sheet

  • Package

  • Technical Information

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