IEI Integration PICOe-945GSE - Manual (Page 37)

PICOe-945GSE Half-Size CPU Card
Page 37
The controllers share the same pins and only one can be activated at a time. The
controllers are interfaced to the PICOe-945GSE audio connector which is in turn
connected to an option audio kit with either an AC’97 codec or an HD Audio codec.
2.5.2.1 Intel
®
ICH7-M Audio Codec ’97 Controller
The Audio Codec ’97 (AC’97) controller integrated into the ICH7-M complies with AC’97
Component Specification, Version 2.3. The AC’97 controller is connected to the onboard
audio connector. The audio connector is connected to an optional 5.1 channel audio kit
with an embedded AC’97 audio codec. The AC’97 controller supports up to six PCM audio
output channels. Complete surround sound requires six-channel audio consisting of:
Front left
Front right
Back left
Back right
Center
Subwoofer
2.5.2.2 Intel
®
ICH7-M High Definition (HD) Audio Controller
The Intel® HD Audio controller on the Intel® ICH7-M shares pins with the AC’97 controller.
Only one controller can be used at a time. Intel® HD Audio controller is interfaced through
the Intel® High Definition Audio serial link to the audio connector which is in turn
connected to an optional 7.1 channel audio kit with an HD audio codec.
2.5.3 Intel
®
ICH7-M Low Pin Count (LPC) Interface
The ICH7-M LPC interface complies with the LPC 1.1 specifications. The LPC bus from
the ICH7-M is connected to the following components:
BIOS chipset
Super I/O chipset