ESS ESS1868 free download

File name ESS1868.pdf

ES1868 AudioDrive Solution Product Brief ® DESCRIPTION The ES1868 AudioDrive® solution 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, an OPL3TM superset ESFMTM music synthesizer, 16-bit stereo wave CODEC, 16-bit stereo music DAC, hardware master volume control, MPU-401 UART mode serial port, dual game port, full Plug and Play support, CD-ROM IDE interface, two serial port interfaces to external DSP and external ES689/ES69x wavetable music synthesizer, DMA control logic with FIFO, and ISA bus interface logic. There are three stereo inputs (typically line-in, CD audio, and auxiliary line-in) and a mono microphone input to an internal preamp. All of this is embodied in a single chip that can be designed into a motherboard, add-on card, or integrated into other peripheral cards such as voice/fax/modem, VGA, LAN, I/O, etc. The ES1868 AudioDrive can record, compress, and play back voice, sound, and music with built-in mixer controls. Using two high-performance DMA channels, the ES1868 supports fullduplex analog operation for simultaneous record and playback. The ESFMTM synthesizer has extended capabilities within native mode operation providing superior sound and power down capabilities. It is register compatible to OPL3. ® FEATURES Single, high-performance, mixed-signal, 16-bit stereo VLSI chip High-quality, OPL3 superset ESFMTM music synthesizer Patented ESPCM® compression CD-ROM IDE interface New configurable DMA supports demand transfer and F-type Plug and Play Features On-chip Plug and Play support for audio, joystick port, FM, modem, MPU-401, CD-ROM, and an additional user-defined I/O device Software address mapping, and 4 DMA and 6 IRQ selections for motherboard implementation Internal configuration data for audio Plug and Play support Read/Write serial interface for Plug and Play resource EEPROM Record and Playback Features Record, compress, and play back voice, sound, and music 16-bit stereo ADC and DAC Programmable sample rates from 4 kHz to 44.1 kHz for record and playback The ES1868 AudioDrive® supports the full ISA Plug and Play standard. It provides Plug and Play configuration for logical devices: audio, ESFMTM synthesizer, game port, MPU-401, CDROM IDE, modem, and an additional user defined device. The MPU-401 hardware is for interfacing to an external MIDI serial port. The ES1868 music DAC allows the use of an external ES689/ES69x wavetable sythesizer through the ES1868's third serial port. The dual game port supports two joysticks both having X, Y resistor value settings and two pushbutton switches. A DSP serial interface allows an external DSP to take over ADC or DAC resources. I/O address, DMA, and interrupt selection can be controlled by system software. Advanced power management features include suspend/resume from disk or host-independent self-timed power-down and automatic wake-up. The ES1868 AudioDrive so