VT8231 datasheet(7/132 Pages) ETC

7 / 132 page

VT8231

Preliminary Revision 0.8 October 29, 1999

-1-

Features

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VT8231

SOUTH BRIDGE

PC99 COMPLIANT

INTEGRATED SUPER-I/O (FDC, LPT, COM, AND FIR),

INTEGRATED FAST ETHERNET, LPC, ISA / LPC BIOS ROM,

INTEGRATED SOUNDBLASTER PRO / MULTICHANNEL

DIRECT SOUND AC97 AUDIO AND MC97 MODEM INTERFACE,

ULTRADMA-33/66/100 MASTER MODE EIDE CONTROLLER,

4 PORT USB CONTROLLER, KEYBOARD CONTROLLER, RTC,

SERIAL IRQ, SMBUS, SERIAL EEPROM,

PLUG AND PLAY, ACPI, ENHANCED POWER MANAGEMENT,

TEMPERATURE, VOLTAGE, AND FAN-SPEED MONITORING

• Inter-operable with VIA and other Host-to-PCI Bridges

− Combine with VT82C598 for a complete Super-7 (66 / 75 / 83 / 100MHz) AGP 2x system (Apollo MVP3)

− Combine with VT8501 for a complete Super-7 system with integrated 2D / 3D graphics (Apollo MVP4)

− Combine with VT82C694X for a complete 66 / 100 / 133 MHz Socket370 / Slot1 AGP 4x system (Apollo Pro133A)

− Combine with VT8601 for a complete 66 / 100 / 133 MHz Socket370 / Slot1 system with integrated 2D / 3D

graphics (Apollo ProMedia)

− Inter-operable with Intel or other Host-to-PCI bridges for a complete PC99 compliant PCI / AGP / LPC system

• Integrated Peripheral Controllers

− Integrated Fast Ethernet Controller with 1 / 10 / 100 Mbit capability

− Integrated USB Controller with two root hub and four function ports

− Dual channel UltraDMA-33 / 66 /100 master mode EIDE controller

− AC-link interface for AC-97 audio codec and modem codec

− HSP modem support

− Interface for optional external modem DSP

− Integrated SoundBlasterPro / DirectSound compatible digital audio controller

− LPC interface for Low Pin Count interface to Super-I/O or ROM

• Integrated Legacy Functions

− Integrated Keyboard Controller with PS2 mouse support

− Integrated DS12885-style Real Time Clock with extended 256 byte CMOS RAM and Day/Month Alarm for ACPI

− Integrated Bus Controller including DMA, timer, and interrupt controller

− Serial IRQ for docking and non-docking applications

− Flash EPROM, 32Mbit (4Mbyte) EPROM and combined BIOS support

− Fast reset and Gate A20 operation

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