Pci Audio-modem Accelerator Product Brief

The ES1988 Allegro PCI audio-modem accelerator combines advanced Audio and modem functionality in a highly integrated PCI solution. Utilizing one PCI load, the ES1988 provides a two- chip audio-modem solution with digital Interface capability to an AC97 codec in the dock (a.k.a. digital docking). The ES1988 is designed to provide a low-cost, high-performance solution for notebook PC applications. The high-bandwidth PCI bus and an integrated high-fidelity codec are utilized to deliver advanced PC Audio features, such as DirectSound acceleration and HRTF 3D positional Audio The ES1988 implements multistream DirectSound and DirectSound3D acceleration with digital mixing, sample rate conversion, and HRTF 3D filtering for two-speaker 3D positional Audio The programmable Audio signal processor provides support for multiple Audio streams. With its built-in DSP core, the ES1988 uses its dedicated direct memory access (DMA) engine to handle complex signal processing tasks with a bus-mastering PCI Interface The support functions ensure efficient transfer of Audio data streams to and from system memory Buffers providing a system solution with maximum performance and minimal host CPU loading. The architecture enables implementation of Communications over the Internet from multiple sources. The ES1988 maintains full DOS legacy Audio compatibility over the standard PCI 2.1 and PCI 2.2 bus. Full DOS game compatibility is ensured through either PC PCI distributed DMA (DDMA), or transparent DMA (TDMA). The ES1988 includes an HSP modem Interface via its secondary AC-Link connecting with the ES2828 MC97 codec. The MC97 is used as the Analog front end for the modem and DAA control. The V.90 modem runs on the host while the ES1988 serves as the bidirectional Buffer for data transmission and reception. The modem functions include the standard AT command set, V.42bis and Group 3 fax. By Unkown
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ES1988 Pinout, Pinouts
ES1988 pinout,Pin out
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