Specifications

2 SAM0025A-062397 ESS Technology, Inc.
ES1879 DATA SHEET
TYPICAL APPLICATION
PRELIMINARY
Interfaces to Expansion Audio Mixer (ES978)

Simple hot-docking interface to ES978 expansion audio
mixer

Two-wire digital status and data communication between
ES1879 and ES978 supports register mirroring with
worst-case latency of approximately 140
µ
sec

Has on-chip dual pairs of analog differential signals for
audio I/O with ES978 expansion audio mixer
Mixer Features

6-channel stereo mixer inputs for line, auxiliary A (CD
audio), auxiliary B, digital audio (wave files), music
synthesizer, I
2
S Zoom Video plus a mono channel mixer
input for microphone

Programmable 6-bit logarithmic master volume control
Plu
g
and Play (PnP) Features

On-chip Plug and Play support for audio, joystick port,
FM, and MPU-401

Software address mapping, four DMA and five IRQ
selections for motherboard implementation

Internal configuration data for audio Plug and Play
support

Read/Write serial interface for Plug and Play resource
EEPROM
Power

Advanced Power Management supports suspend/
resume from disk

Supports 3.3 or 5.0 V operation
Compatibility

Supports PC games in Sound Blaster™ and Sound
Blaster™ Pro modes

Supports Microsoft Windows™ Sound System


Meets PC97 and WHQL specifications.
Operatin
g
Systems

Microsoft Windows

95

Microsoft Windows™ 3.1

Microsoft Windows for Workgroups™

Microsoft Windows NT™ 3.51 & 4.0

IBM

OS/2

Warp™
TYPICAL APPLICATION
Aux
Joystick
ES978
ES1879
XA[3:0]
XSC
XSD
DOCKED
ISA Bus
Mic
CD Audio
Line
I
2
S Zoom Video
Auxiliary
Speakers
Mic
CD Audio
I
2
S Zoom Video
Speakers
Docking Station
Notebook PC
Option
Joystick
ES689/
ES69x
Wavetable Option
Line
ES938
3-D Option
ES689/
ES69x
Wavetable Option