4 intel® ich7-m ide interface, 5 intel® ich7-m low pin count (lpc) interface, 6 intel® ich7-m pci interface – IEI Integration IEM-9452 User Manual
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IEM-9452 ETX Module
Page 16
2.6.4 Intel
®
ICH7-M IDE Interface
The integrated IDE interface on the ICH7-M Southbridge supports two IDE hard disks and
ATAPI devices through the 40-pin IDE connector on the baseboard. PIO IDE transfers up
to 16 MB/s and Ultra ATA transfers of 100 MB/s. The integrated IDE interface is able to
support the following IDE HDDs:
Ultra ATA/100, with data transfer rates up to 100 MB/s
Ultra ATA/66, with data transfer rates up to 66 MB/s
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 3 - 4
UDMA 3 – 4
UDMA 2
DMA/UDMA Max Transfer
100 MB/s
66 MB/s
33 MB/s
Controller Interface
5V
5V
5V
Table 2-2: Supported HDD Specifications
2.6.5 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
2.6.6 Intel
®
ICH7-M PCI Interface
The PCI interface on the ICH7-M is compliant with the PCI Revision 2.3 implementation.
Some of the features of the PCI interface are listed below.
PCI Revision 2.3 compliant