ESS ESS1888 free download

File name ESS1888.pdf

ES1888 AudioDrive® Product Brief DESCRIPTION The ES1888 AudioDrive is a mixed-signal single-chip solution that adds 16-bit stereo sound and FM music synthesis to personal computers. It includes an embedded microprocessor, a 20-voice ESFMTM music synthesizer, 16-bit stereo wave ADC and DAC, 16bit stereo music DAC, MPU-401 UART mode serial port, dual game ports, hardware master volume control, two serial port interfaces to external DSP and external wavetable music synthesizer, DMA control logic with FIFO, and ISA bus inferface logic. There are three stereo inputs (typically line, CD Audio, and auxiliary line) and a mono microphone input to an internal preamp. All of this on a single chip that can be designed into a motherboard, add-on card, or integrated into other peripheral cards such as Fax/Modem, VGA, LAN, I/O, etc. The ES1888 AudioDrive can record, compress, and play back voice, sound, and music with built-in 7-channel mixer controls. Using two high-performance DMA channels, the ES1888 supports full-duplex operation for simultaneous record and playback. The ESFMTM synthesizer has extended capabilities within native mode operation providing superior sound and power-down capabilities. The ES1888 is register compatible to OPL3TM. The MPU-401 serial port is for interfacing with an external MIDI device. The dual game port supports two joysticks both having X,Y resistor value settings and two pushbutton switches. The PC speaker volume can be modified by software. Two software address selection modes allow for motherboard Plug and Play configuration. A DSP serial interface allows an external DSP to take over DAC or ADC resources. A wavetable serial port allows the ES1888 to interface with either the ES689 or ES690 wavetables. I/O address, DMA, and interrupt selection can be controlled through system software. Advanced power management features include suspend/resume from disk or host-independent self-timed power-down and automatic wake-up. The ES1888 AudioDrive® is available in an industry-standard 100pin Plastic Quad Flat Pack (PQFP) package. ® ® FEATURE HIGHLIGHTS W W Single, high-performance, mixed-signal, 16-bit stereo VLSI chip for digital audio High-quality, 20-voice ESFMTM music synthesizer; patents pending Patented ESPCM® compression Record, compress, and play back voice, sound, and music 16-bit stereo ADC/DAC for digital audio Programmable sample rate from 4 kHz to 44.1 kHz for record and playback 3-button hardware volume control for up, down, and mute Full-duplex operation for simultaneous record and playback using two DMA channels MIDI serial port compatible with MPU-401 UART mode ESS high-performance integrated dual game port Single or Demand transfer DMA Software address mapping, DMA and IRQ selections for motherboard Plug and Play Wavetable serial port interface to ES689/ES690 for direct access to the music DAC PC speaker input/output with volume control 3 stereo DACs with independent sample rate and filter control for simultaneous g