IEI Integration IEM-945GSE - Manual (Page 26)

IEM-945GSE ETX 3.0 Module
Page 14
2.5 Intel® ICH7M Southbridge Chipset
The Intel® ICH7M Southbridge chipset is connected to the Intel® 945GSE Northbridge
through the chip-to-chip Direct Media Interface (DMI). The Intel® ICH7M provides the I/O
capabilities to the system.
Many of the connections on the Intel® ICH7M are wired through the ETX 3.0 connectors
to connectors on the carrier board. Some of the features of the Intel® ICH7M are listed
below. The connections from the Intel® ICH7M are shown in Figure 2-4.
2.5.1 AC'97 Audio Controller
The AC'97 connection is connected to an AC'97 controller. The controller is connected to
the ETX 3.0 connectors. AC'97 audio provides 5.1 channel audio output and audio input.
2.5.2 IDE Interface
The IDE interface can be connected to an IDE connector or to a CompactFlash® slot. The
integrated IDE interface is able to support the following IDE HDDs:
ƒ Ultra ATA/100, with data transfer rates up to 100 MB/s
ƒ Ultra ATA/66, with data transfer rates up to 66 MB/s
ƒ Ultra ATA/33, with data transfer rates up to 33 MB/s
Specification Ultra ATA/100 Ultra ATA/66 Ultra ATA/33
IDE devices 2 2 2
PIO Mode 0 – 4 0 – 4 0 – 4
PIO Max Transfer Rate 16.6 MB/s 16.6 MB/s 16.6 MB/s
DMA/UDMA designation UDMA 5 UDMA 4 UDMA 2
DMA/UDMA Max Transfer 100 MB/s 66 MB/s 33 MB/s
Controller Interface 5 V 5 V 5 V
Table 2-1: Supported HDD Specifications