SNC710

16-bit Voice Engine

1. INTRODUCTION

The SNC710 is a powerful voice engine, which is based on16-bit fixed-point DSP

architecture. This chip embedded 32K words hi-performance ROM and 2K words

RAM. This internal ROM is used to implement software synthesizer in order to provide

various flexible sound effects for users, such as 2kbps~24kbps voice compression,

4-CH wave-table melody etc…. Furthermore, the SNC710 also built-in a SONiX’s

mask ROM interface, all the user’s program and voice data should be stored in

external mask ROM. And SNC710 can execute user’s program from this external

mask ROM.

2. FEATURES

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Power supply: 2.4V ~ 3.6V (for 2 battery application)

3.6V ~ 5.1V (for 3 battery application)

Built-in a 16-bit DSP (Very Light Structure)

Software-based voice/melody processing

Rich Function Instruction Set

16MHz crystal or R-C type oscillator for system clock

8 MIPS CPU performance

I/O Ports:

16 I/O pins (P0.0~P0.15) and 8 input pins (P1.0~P1.7)

P0.15 with IR carrier signal

RAM size: 2K*16 bits

High performance program ROM: 32K*16

Watch-Mode for real time clock (32768HZ clock source)

9 Interrupt Sources

4 for Internal Timer (timer0, 1, 2 and RTC)

4 for External interrupt(P0.0~P0.3)

1 for DA or PWM

Three 8-bit timer with auto-reload function

Built in a 10-bit PWM Direct Drive circuit and a fixed current D/A output

Sampling Rate: 4KHz ~16KHz

Built-in software voice synthesizer (multiple bit-rate solution from 2Kbps ~ 24Kbps

@8K sampling rate)

Low Voltage Reset

Ver. 1.4

July 30, 2003

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