VT82C686A datasheet(2/5 Pages) ETC

2 / 5 page

VT82C686A

Revision 1.1 April 15, 1999

-2-

Features

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• UltraDMA-33 / 66 Master Mode PCI EIDE Controller

− Dual channel master mode PCI supporting four Enhanced IDE devices

− Transfer rate up to 33MB/sec to cover PIO mode 4, multi-word DMA mode 2 drives, and UltraDMA-33 interface

− Increased reliability using UltraDMA-66 transfer protocols

− Thirty-two levels (doublewords) of prefetch and write buffers

− Dual DMA engine for concurrent dual channel operation

− Bus master programming interface for SFF-8038i rev.1.0 and Windows-95 compliant

− Full scatter gather capability

− Support ATAPI compliant devices including DVD devices

− Support PCI native and ATA compatibility modes

− Complete software driver support

• Integrated Super IO Controller

− Supports 2 serial ports, IR port, parallel port, and floppy disk controller functions

− Two UARTs for Complete Serial Ports

Programmable character lengths (5,6,7,8)

Even, odd, stick or no parity bit generation and detection

Programmable baud rate generator

High speed baud rate (230Kbps, 460Kbps) support

Independent transmit/receiver FIFOs

Modem Control

Plug and play with 96 base IO address and 12 IRQ options

− One dedicated IR port

Third serial port dedicated to IR function

IR function either through the two complete serial ports or the third dedicated port

Infrared-IrDA (HPSIR) and ASK (Amplitude Shift Keyed) IR

− Multi-mode parallel port

Standard mode, ECP and EPP support

Plug and play with 192 base IO address, 12 IRQ and 4 DMA options

− Floppy Disk Controller

16 bytes of FIFO

Data rates up to 1Mbps

Perpendicular recording driver support

Two FDDs with drive swap support

Plug and play with 48 base IO address, 12 IRQ and 4 DMA options

• SoundBlaster Pro Hardware and Direct Sound Ready AC97 Digital Audio Controller

− Dual full-duplex Direct Sound channels between system memory and AC97 link

− PCI master interface with scatter / gather and bursting capability

− 32 byte FIFO of each direct sound channel

− Host based sample rate converter and mixer

− Standard v1.0 or v2.0 AC97 Codec interface for single or cascaded AC97 Codec’s from multiple vendors

− Loopback capability for re-directing mixed audio streams into USB and 1394 speakers

− Hardware SoundBlaster Pro for Windows DOS box and real-mode DOS 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, Windows-98 and Windows-NT

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