User Guide

8081

N/B Maintenance

Ultra ATA/100/66/33, BMIDE and PIO modes

Tri-state modes to enable swap bay

USB

Includes three UHCI host controllers that support six external ports

New: Includes one EHCI high-speed USB 2.0 Host Controller that supports all six ports

New: Supports a USB 2.0 high-speed debug port

Supports wake-up from sleeping states S1–S5

Supports legacy keyboard/mouse software AC-Link for Audio and Telephony CODECs

Supports AC ’97 2.3

New: Third AC_SDATA_IN line for three codec support

New: Independent bus master logic for seven channels (PCM In/Out, Mic 1 input, Mic 2 input, modem in/out,

S/PDIF out)

Separate independent PCI functions for audio and modem

Support for up to six channels of PCM audio output (full AC3 decode)

Supports wake-up events Interrupt Controller

Support up to eight PCI interrupt pins

Supports PCI 2.2 message signaled interrupts

Two cascaded 82C59 with 15 interrupts

Integrated I/O APIC capability with 24 interrupts