Product specifications

Design Guide - VT82C694X Apollo Pro133 with VT82C686A
Preliminary Revision 0.5, November 19, 1999 3 Introduction
Technologies, Inc.
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1.2.2 Super South (VT82C686A) Chipset Features
The VT82C686A Super-IO PCI Integrated Peripheral Controller (PSIPC) is a high integration, high performance, power efficient
and high compatibility device that supports Intel and non-Intel based processors plus PCI bus bridge functionality to make a
complete Microsoft PC98-compliant PCI/ISA system. In addition to complete ISA extension bus functionality, the VT82C686A
includes the following standard intelligent peripheral controllers:
• Master mode enhanced IDE controller with dual channel DMA engine and interlaced dual channel commands
• 4-Port Universal Serial Bus (USB) controller that is USB v1.1 and Universal HCI v1.1 compliant
• Keyboard controller with PS2 mouse support
• Real Time Clock (RTC) with 256 bytes extended CMOS
• Power management (PM) functionality compliant with ACPI and legacy APM requirements
• Hardware monitoring subsystem for managing system/motherboard voltage levels, temperatures, and fan speed
• Full System Management Bus (SMBus) interface
• Two 16550-compatible serial I/O ports with infrared communication port option
• Integrated PCI-mastering dual full-duplex direct-sound AC97-link-compatible sound system.
• Two game ports and one MIDI port
• ECP/EPP-capable parallel port
• Standard Floppy Disk Drive (FDD) interface
• Distributed DMA capability for support of ISA legacy DMA over the PCI bus. Serial IRQ is also supported for docking
and non-docking applications
• Plug and play controller that allows complete steerability of all PCI interrupts and internal interrupts / DMA channels to
any interrupt channel