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
16-bit Voice Engine,
SNC759,SNC749,SNC745,SNC739,SNC735,SNC729,SNC725,
SNC715,SNC712,SNC710,
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 L環(huán) 芯ight 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
