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PCIE-9452 PICMG 1.3 CPU Card
®
2.6 Intel
ICH7R Southbridge Chipset
®
2.6.1 Intel
ICH7R Overview
The Intel® ICH7R southbridge chipset is connected to the Intel® 945GM northbridge
GMCH through the chip-to-chip Direct Media Interface (DMI). Some of the features of the
Intel® ICH7R are listed below.
Complies with PCI Express Base Specification, Revision 1.0a
Complies with PCI Local Bus Specification, Revision 2.3 and supports 33MHz
PCI operations
Supports ACPI Power Management Logic
Contains:
o
Enhanced DMA controller
o
Interrupt controller
o
Timer functions
Integrated SATA host controller with DMA operations interfaced to four SATA
connectors on the PCIE-9452
Integrated IDE controller supports Ultra ATA 100/66/33
Supports the four USB 2.0 devices on the PCIE-9452 with four UHCI
controllers and one EHCI controller
Complies with System Management Bus (SMBus) Specification, Version 2.0
Supports Audio Codec '97 (AC'97) Revision 2.3
Supports Intel® High Definition Audio
Contains Low Pin Count (LPC) interface
Supports Firmware Hub (FWH) interface
Serial peripheral interface support
®
2.6.2 Intel
ICH7R Audio Codec '97 Controller
The Audio Codec '97 (AC'97) controller integrated into the ICH7R 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 or 7.1
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:
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