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eSL Series
16 Bits DSP
Sound Processor
Product
Specification
DOC. VERSION 1.7
ELAN MICROELECTRONICS CORP.
October 2009

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eSL Series
16 Bits DSP Sound Processor
Trademark Acknowledgments:
IBM is a registered trademark and PS/2 is a trademark of IBM.
Windows is a trademark of Microsoft Corporation.
ELAN and ELAN logo
are trademarks of ELAN Microelectronics Corporation.
Copyright © 2006~2009 by ELAN Microelectronics Corporation
All Rights Reserved
Printed in Taiwan
The contents of this specification are subject to change without further notice. ELAN Microelectronics assumes no
responsibility concerning the accuracy, adequacy, or completeness of this specification. ELAN Microelectronics
makes no commitment to update, or to keep current the information and material contained in this specification.
Such information and material may change to conform to each confirmed order.
In no event shall ELAN Microelectronics be made responsible for any claims attributed to errors, omissions, or
other inaccuracies in the information or material contained in this specification. ELAN Microelectronics shall
not be liable for direct, indirect, special incidental, or consequential damages arising from the use of such
information or material.
The software (if any) described in this specification is furnished under a license or nondisclosure agreement, and
may be used or copied only in accordance with the terms of such agreement.
ELAN Microelectronics products are not intended for use in life support appliances, devices, or systems. Use of
ELAN Microelectronics product in such applications is not supported and is prohibited.
NO PART OF THIS SPECIFICATION MAY BE REPRODUCED OR TRANSMITTED IN ANY FORM OR BY
ANY MEANS WITHOUT THE EXPRESSED WRITTEN PERMISSION OF ELAN MICROELECTRONICS.
ELAN MICROELECTRONICS CORPORATION
Headquarters:
No. 12, Innovation Road 1
Hsinchu Science Park
Hsinchu, Taiwan 30077
Tel: +886 3 563-9977
Fax: +886 3 563-9966
http://www.emc.com.tw
Hong Kong:
Elan (HK) Microelectronics
Corporation, Ltd.
Flat A, 19F., World Tech Centre 95
How Ming Street, Kwun Tong
Kowloon, HONG KONG
Tel: +852 2723-3376
Fax: +852 2723-7780
elanhk@emc.com.hk
USA :
Elan Information Technology
Group (USA)
1821 Saratoga Ave., Suite 250
Saratoga, CA 95070
USA
Tel :+1 408 366-8225
Fax: +1 408 366-8220
Shenzhen:
Elan Microelectronics
Shenzhen, Ltd.
3F, SSMEC Bldg., Gaoxin S. Ave. I
Shenzhen Hi-tech Industrial Park
(South Area) Shenzhen 518057
CHINA
Tel: +86 755 2601-0565
Fax: +86 755 2601-0500
Shanghai:
Elan Microelectronics
Shanghai, Ltd.
23/Bldg. #115 Lane 572, Bibo Road
Zhangjiang Hi-Tech Park
Shanghai, CHINA
Tel: +86 21 5080-3866
Fax: +86 21 5080-4600

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Contents
eSL Series
16 Bits DSP Sound Processor
1 General Description.....................................................................................................1
2 Features........................................................................................................................1
3 Block Diagram..............................................................................................................3
4 Selection Table.............................................................................................................4
5 Algorithm Selection Table ...........................................................................................6
6 Pin Description.............................................................................................................8
7 Electrical Characteristics ..........................................................................................12
8 Application Circuits ...................................................................................................15

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eSL Series
16 Bits DSP Sound Processor
Specification Revision History
Doc. Version
1.0
1.1
1.2
1.3
1.4
1.5
1.6
1.7
Revision Description
1. Modified the Pin description in Section 5
2. Modified the Operating temperature Range in Section 6.2
1. Added a comment after the Selection table in Section 4
2. Modified the Application Circuits diagram in Section 7
3. Modified the Sampleing Rate Range in Section 4
1. Added eSL032
2. Modified the Temperature Range in Section 6.2
3. Modified the Power Supply voltage in Section 6.3
4. Added algorithm suuport such as beat tracking, sound
location, speech control, pitch control in Section 2 and 4
1. Added package information in Section 4
2. Modified Application Circuit in Section 7
1. Modified PWM current in Section 6.3
2. Added PortC DC characteristic in Section 6.3
1. Modified Application Circuits diagram in Section 7
2. Modified Algorithm support in Section 2 and 4
3. Added eSL032B, eSL128B, eSL256B, eSL512B,
eSL512C
1. Added algorithm-related section in Section 5
1. Modify PC[7:0] pull-up resiter in Section 7.3
2. Modified Application Circuit in Section 8
Date
2006/10/31
2007/04/12
2007/08/10
2007/11/10
2008/01/10
2008/10/15
2009/04/15
2009/10/15

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eSL Series
16 Bits DSP Sound Processor
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
Product Specification (V1.7) 10.15.2009
(This specification is subject to change without further notice)
1