Manual

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