Motherboard Description
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1.8.6 Infrared Support
The motherboard has a 5-pin header that supports Hewlett Packard
†
HSDSL-1000 compatible
infrared (IR) transmitters/receivers. The connection can be used to transfer files to or from portable
devices like laptops, PDAs, and printers. The Infrared Data Association (IrDA) specification
supports data transfers of 115 Kbps at a distance of 1 meter.
1.8.6.1 Consumer Infrared Support
The motherboard has a signal pin that supports Consumer IR devices (remote controls). The signal
pin supports receive only. Consumer IR devices can be used to control telephony functions and
multimedia operations like volume and CD track changes. A software and hardware interface is
needed to use this feature.
1.9 Audio Subsystem
The optional onboard audio subsystem features the Crystal CS4236, a 100-pin TQFP audio codec
with an integrated FM synthesizer. The audio subsystem provides all the digital audio and analog
mixing functions needed for recording and playing sound on personal computers. Together, these
components feature:
• Stereo analog-to-digital and digital-to-analog converters
• Analog mixing, anti-aliasing, and reconstruction filters
• Line and microphone level inputs
• ADPCM, A-law, or µlaw digital audio compression/decompression
• Full digital control of all mixer and volume control functions
• Full duplex operation
• Sound Blaster
†
game and Windows Sound System compatibility
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