描述 Description

The SNC7001A is a multi-function voice engine, which is based on 16-bit fixed-pointDSP architecture. This chip embedded 32K words hi-performance internal program RAM(boot from external flash, only one time after IC reset) and 16K words RAM (8K programRAM “boot from external flash, update anytime by user program” and 8K data RAM). 32Kwords internal program RAM is used to implement software synthesizer in order to providevarious high speed image, voice compression or many different fancy algorithm forusers, such as 1.5kbps~32kbps voice compression, 12-CH wave-table melody, voice changeralgorithm etc…. Furthermore, the SNC7001A also built-in many interfaces for connectingwith external devices, such as USB2.0, SD card, NAND Flash, SPI, I2S, LCM, CMOS sensoretc…, these interfaces can create more advanced application at different areas inthe future.

特性 Features

? Power supply: 3.6V ~ 5.1V (for 3 battery application, needs to add external regulator)
? Built-in a 16-bit DSP (Very Light Structure)
? Built-in ICE for debugging
? 12MHz crystal or IHRC (internal high RC) type for system clock
? 48 MIPS CPU
? I/O Ports: 76 I/O pins (P0.0~P4.11) and 4 input (P4.12~P4.15), it shared with other IF pins
? Watch-Mode for real time clock (32768HZ clock source)
? 4 Timer (timer0, 1, 2 and RTC)
? 3 External interrupt (P0.0~P0.2)
? Sampling Rate: 8 / 12 / 16 / 22.05 / 24 / 32 / 44.1 /48 KHz
? Low Voltage Reset
? Low Voltage Detect
? Multi peripheral: SPI, I2S, MSP, 8080 LCM, CMOS, SD card, NAND Flash, SPI Flash, Parallel Flash
? USB 2.0 High speed