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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
Preliminary Revision 0.5, November 19, 1999
Design Guide - VT82C694X Apollo Pro133 with VT82C686A
3
Introduction
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