VT8231 Datasheet, PDF (9/132 Pages) List of Unclassifed Manufacturers – SOUTH BRIDGE PC99 COMPLIANT

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VT8231
• SoundBlaster Pro Hardware and Direct Sound Ready AC97 Digital Audio Controller
− Up to six concurrent AC97 output channels for six-speaker surround sound experience
− Multiple Direct Sound channels between system memory and AC97 link
10 Direct Sound output channels
4 Direct Sound input channels
8-channel hardware sample-rate-converter / mixer
1 Surround Sound channel of up to six data streams
− PCI bus master interface with scatter / gather and bursting capability
− 32 byte FIFO for each direct sound channel
− Host based wave table synthesis
− Standard v1.03 or v2.1 AC97 Codec interface with up to four AC97 codec’s from multiple vendors
− Loopback capability for re-directing mixed audio streams into USB and 1394 speakers
− Hardware SoundBlaster Pro for legacy compatibility
− Plug and play with 4 IRQ, 4 DMA, and 4 I/O space options for SoundBlaster Pro and MIDI hardware
− Hardware assisted FM synthesis for legacy compatibility
− Direct two game ports and one MIDI port interface
− Complete software driver support for Windows-95 / 98 / 2000 and Windows-NT
• MC97 HSP Modem Controller
− PCI bus master interface with scatter / gather and burst capability
− Standard AC97 codec interface for MC or AMC codec
− Wake on ring in APM or ACPI mode through AC97 link
− Supported by most HSP modem vendors
• Universal Serial Bus Controller
− USB v.1.1 and Intel Universal HCI v.1.1 compatible
− Eighteen level (doublewords) data FIFO with full scatter and gather capability
− Root hub and four function ports
− Integrated physical layer transceivers with optional over-current detection status on USB inputs
− Legacy keyboard and PS/2 mouse support
• System Management Bus Interface
− One master / slave SMBus and one slave-only SMBus
− Host interface for processor communications
− Slave interface for external SMBus masters
Preliminary Revision 0.8 October 29, 1999
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Features