CS4281 Datasheet, PDF (1/36 Pages) Cirrus Logic – CrystalClear PCI Audio interface

CS4281
Product Data Sheet
FEATURES
n Full DOS Games Compatibility via PC/PCI, DDMA,
and CrystalClear Legacy Support
n PCI Version 2.1 Bus Master
n PC ’98 and PC ’99 Compliance
n MPU-401 interface, FM Synthesizer, and Game
Port
n Full Duplex Operation
n Hardware Volume Control
n Win 95^®, 98 (WDM), Win NT^® 4.0, Win NT 5.0
(WDM) Drivers
n Advanced Power Management (PPMI)
n Digital Docking Solution with AC ‘97 2.0 Codec
n Support for Multi-Channel Audio Output
n Hardware Sample Rate Converters
n Pin-Compatible with CS4614 and CS4280-CM
CrystalClear™ PCI
Audio Interface
DESCRIPTION
The CS4281 is a PCI audio controller with integrated
legacy games support suitable for desktop and note-
book PC designs. When combined with driver software
and an AC ’97 codec such as the CS4297A, this device
provides a complete high quality audio solution. Legacy
compatibility is achieved via PC-PCI, DDMA, and Crys-
talClear Legacy Support. The product includes an
integrated FM synthesizer and Plug-and-Play interface.
In addition, the CS4281 offers hardware volume control
and power management features. WDM drivers provide
support for Windows 98^® and Windows NT^®. When
used with the CS4297A, the CS4281 is fully compliant
with Microsoft’s PC ’98 and PC ‘99 audio requirements.
In the 100-pin MQFP package, the CS4281 is pin-com-
patible with the CS4614 and CS4280-CM.
ORDERING INFORMATION
CS4281-CM 100-pin MQFP 14x20x2.72mm
CS4281-CQ 100-pin TQFP 14x14x1.4mm
PCI
PCI Bus _Interface
DMA
Engine
Interrupt
Control
MIDI &
Joystick
Support
Mixer SRC
Controller
FM
I/O Register Array
PLL &
Clock
Control
DS308PP4
CIRRUS LOGIC PRODUCT DATA SHEET
Copyright © Cirrus Logic, Inc. 1999
(All Rights Reserved)
APR ‘99