2 vt82c686b features, Hardware functional overview – FIC A360 User Manual

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Hardware Functional Overview

4.5.2 VT82C686B

Features

The VT82C686B PSIPC (PCI Super-I/O Integrated Peripheral Controller) is a high-
integration, high performance, power-efficient, and high compatibility device that supports
Intel and non-Intel based processor to PCI bus bridge functionality to make a complete
Microsoft PC99-compliant PCI/ISA system.

The VT82C686B functions and capabilities include:

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

• Combine with TWISTER for a complete 66 / 100 / 133 MHz Socket 370 or Slot-1 system

with integrated 2D / 3D graphics ( S3 Savage 4)

• Inter-operable with Intel or other Host-to-PCI bridges for a complete PC99 compliant PCI

/ AGP / ISA system


PCI to ISA Bridge

• Integrated ISA Bus Controller with integrated DMA, timer, and interrupt controller

• 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 USB Controller with root hub and four function ports

• Integrated UltraDMA-33/66 master mode EIDE controller with enhanced PCI bus

commands

• PCI-2.2 compliant with delay transaction and remote power management

• Distributed DMA support for ISA legacy DMA across the PCI bus

• Fast reset and Gate A20 operation

• Flash EPROM, 4Mb EPROM and combined BIOS support
• Supports positive and subtractive decoding

UltraDMA-33 / 66 / 100 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

• Support ATAPI compliant devices including DVD devices

• Support PC 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

• Infrared-IrDA (HPSIR) and ASK (Amplitude Shift Keyed) IR port multiplexed on COM2

• Multi-mode parallel port
• Floppy Disk Controller

SoundBlaster Pro Hardware and Direct Sound Ready AC97 Digital Audio Controller

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


FIC A360 Service Manual

4-7

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