ESS ES1879
The ES1879 AudioDrive® solution is a mixed-signal single-chip solution that adds 16-bit stereo sound and FM music synthesis to notebook computers. It is compliant with the Microsoft® PC97 specification and WHQL audio requirements. The ES1879 includes an embedded microcontroller, an OPL3™ superset ESFM™ music synthesizer, 16-bit stereo wave CODEC, 16-bit stereo system DAC, 16-bit stereo music DAC, 16-bit stereo I2S DAC, optional ISA Plug and Play (PnP) support, hardware master volume control, DMA control logic with FIFO, ISA bus interface logic, general-purpose I/O, and digital dual game port.
| Part No. |
ES1879 |
| Datasheet |
ES1879
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| Manufacturer |
 ESS |
| Description |
16-bit stereo sound and FM music synthesis |
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DESCRIPTION
The ES1879 also incorporates three serial ports that allow interfacing with external DSP, wavetable, and MIDI (MPU-401 UART mode compatible). In addition, the ES1879 offers I2S Zoom Video interface and support for the optional ES978 Expansion Audio Mixer in docking stations. A four-wire expansion analog bus and two-wire serial control bus connect the ES1879 with the ES978, allowing the ES1879 to engage the docking station’s audio resources when docked. The ES1879 AudioDrive® can record, compress, and play back voice, sound, and music with built-in mixer controls. Using two high-performance DMA channels, the ES1879 supports fullduplex operation for simultaneous record and playback. One channel supports bidirectional DMA data transfers and the other supports DMA playback. The ES1879 AudioDrive® supports optional ISA Plug and Play with configuration for 4 logical devices: configuration device, audio plus ESFM™ synthesis, game port, and MPU-401. The integrated 3-D audio effects...
