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PDF eAM512S Data sheet ( Hoja de datos )
| Número de pieza | eAM512S | |
| Descripción | 16 Bits DSP Sound Processor | |
| Fabricantes | ELAN Microelectronics | |
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eAMS Series
16 Bits DSP
Sound Processor
Product
Specification
DOC. VERSION 1.7
ELAN MICROELECTRONICS CORP.
DEC 2009
1 page  
Contents
1 General Description
The ELAN eAMS 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 supports a wide range of
compression bit rates and various volume levels. The ELAN eAMS Series provides
real instrument waveform to obtain good quality melody. The ELAN eAMS peripheral
includes RTC, Timer, WDT, DAC, PWM, etc.
The ELAN eAMS Series IC’s offer Fast mode, Sleep mode, Green mode, and Slow
mode 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 eAMS 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 eAMS Series have extreme high performance in melody 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)
• 18 interrupt sources with 2-level priority
Memory
• 32K-word program memory
• 2K-word data RAM
• 096/128/192/256/384/512K-word data ROM
Peripherals
• Real Time Clock (RTC) with wake-up function
• Four 8-bit timers, two general purpose timers, two multiple-function timers
• 8-bit Watchdog Timer (WDT) with general purpose timer capability
• 24 GPIO
Product Specification (V1.7) 12.1.2009
(This specification is subject to change without further notice)
•1
5 Page 
eAMS Series
16 Bits DSP Sound Processor
7.2 System Control
Name
Type
Description
RSTB
TEST
OSCI
I RSTB is the low active global reset input *
I
Test mode select pin (High active). Internal pull down.
For chip internal test only, Normally connect to VSS.
Crystal or RC oscillator connecting pin
I
RC or Crystal selection is by OSCS pin
OSCO
O Crystal oscillator connecting pin
OSCS
I
RC or Crystal selection: 0 = RC
1 = Crystal
PLLC
I PLL loop filter capacitor **
* This pin has an internal pull-up 150KΩ resistor. Refer to the Application Circuit.
** This pin must connect a 47nF capacitor to ground. Refer to the Application Circuit.
7.3 DAC Output
Name
DACO
Type
O
Description
Current D/A output pin
Product Specification (V1.7) 12.1.2009
(This specification is subject to change without further notice)
•7
11 Page | ||
| Páginas | Total 16 Páginas | |
| PDF Descargar | [ Datasheet eAM512S.PDF ] | |
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