Elan eSL Series Manuel d'utilisateur télécharger pdf (Page 5)

eSL Series

16 Bits DSP Sound Processor

Product Specification (V1.7) 10.15.2009

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(This specification is subject to change without further notice)

1 General Description

The ELAN eSL Series IC is a 16-bit DSP Sound Processor with multi-channel speech

and instrument playback. It is based on ELAN 16-bit DSP platform. The series has a

powerful 16-bit DSP architecture that handles most of the speech/melody functions.

Speech and melody can be played back simultaneously. The speech synthesis is

implemented by software, and it supports a wide range of compression bit rates and

various volume levels. The ELAN eSL Series provides real instrument waveform to

obtain good quality melody. The ELAN eSL peripheral includes ADC, RTC, Timer,

WDT, SPI, DAC, PWM, etc.

The ELAN eSL Series IC offer Fast, Sleep, Green, and Slow modes of operation.

The use of Green/Slow mode will further reduce the power consumption. Green

mode also provides RTC function for wake-up purposes.

The ELAN eSL Series enhanced features make it suitable for versatile voice and

sound effect product applications. These enhanced versatile features allow users to

create products with a wide variety of new fancy ideas.

The ELAN eSL Series has extreme high performance in speech application based on

powerful DSP architecture and good algorithm in audio compression.

2 Features

 MCU

• 16-bit RISC CPU architecture

• CPU clock: 20 MHz @ 3.3V

• Programmable PLL

• Four CPU operation modes: fast, slow, green, sleep

• Powerful DSP Instruction Set supports multiplication, division, repeat, loop

and soft interrupt instructions

• Saturation mode is supported for multimedia applications

• Eight general purpose registers (GPR)

• 21 interrupt sources with 2-level priority

 Memory

• 32K-word program memory

• 2K-word data RAM

• 032/128/256/512K-word data ROM

 Peripherals

• Real Time Clock (RTC) with wake-up function

• Four 8-bit timers, two general purpose timers, two multiple-function timers

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Elan eSL Series Manuel d'utilisateur Page 5