IEI Integration PCISA-945GSE v1.01 - Manual (Page 36)

PCISA-945GSE CPU Card
Page 18
2.5.2.1 IDE Connector
The IDE connector on the Intel® ICH7M Southbridge connects to an IDE hard disk or
other IDE device. 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:
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
2.5.2.2 CompactFlash® Slot
The CompactFlash® slot on the PCISA-945GSE is interfaced through the IDE interface on
the Intel® ICH7M Southbridge. The CompactFlash® slot is on the solder side of the
PCISA-945GSE.
2.5.3 Real Time Clock
256 bytes of battery backed RAM is provided by the Motorola MC146818 A real time clock
(RTC) integrated into the ICH7M. The RTC operates on a 3 V battery and 32.768 KHz
crystal. The RTC keeps track of the time and stores system data even when the system is
turned off.