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1.
DESCRIPTION
Thank you for choosing our ESS Modem/Audio Combo Card, which uses the ES56CV-
PI chipset. It includes the Maestro-2EM digital audio accelerator, the ES2890S
modem processor, the AC'97-compliant ES1918 audio CODEC and the ES2818
modem AFE.
The main chipset Maestro-2EM (ES1978) features a hardware wavetable synthesizer
with Downloadable Sample (DLS) and complete DirectSound acceleration.
Both Microsoftâ's PC98 and PC97 logo requirements and DOS game compatibility are
supported.
The Maestro-2EM audio accelerator interfaces with the ES2890S modem processor to
offer users a cost-effective PCI audio/modem combination solution.
1.1.
Audio Features
Þ Interface with ES56 DSP modem solution
Þ Hardware wavetable and effect synthesizer
Þ Multi-stream Direct Sound and DSSD acceleration
Þ 500 MIPSS equivalent processor performance to accelerate multi-stream PC audio
Þ 64-channel Wave Processor for direct sound and/or wavetable applications
Þ Distributed and PC/PCI DMA, Compaq serial IRQ support and Transparent DMA
Þ 3.3 V power supply, 5V - input tolerant
Þ Multiple AC'97 CODEC interface with up to 20-bit ADC/DAC audio and signal
resolution
1.2.
Modem Features
Data Mode Capabilities
Þ V.90 56 Kbps
Þ ITU-T V.34 33600 bps and fallbacks
Fax Mode Capabilities
Þ ITU-T V.17, V.29, V.27ter, V.21 Ch2
Þ Group 3 (TIA/EIA 578 Class 1 and Class 2)
Telephone Capabilities
Þ Telephone Answering Machine
Þ DTMF generation and detection
Þ Full Duplex Speakerphone
Þ Caller ID
TIES escape sequence
ESS Audio/Modem Combo Card
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