Iei-integration PICOe-GM45A Manual de usuario Pagina 38

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PICOe-GM45A Half-Size CPU Card
Page 38
2.5.5 Intel
®
ICH9M PCIe Bus
The Intel® ICH9M GMCH has six PCIe x1 lanes. All of the PCIe lanes are implemented on
the PICOe-GM45A, including:
Four PCIe x1 expansion cards on a compatible backplane
Two PCIe x1 lanes are connected to two Intel® 82574L GbE controllers.
For more detailed information, please refer to Section
719H2.7
2.5.6 Intel
®
ICH9M Real Time Clock
256 bytes of battery backed RAM is provided by the Motorola MC146818A real time clock
(RTC) integrated into the ICH9M. The RTC operates on a 3V battery and 32.768KHz
crystal. The RTC keeps track of the time and stores system data even when the system is
turned off.
2.5.7 Intel
®
ICH9M SATA Controller
The integrated SATA host controllers on the ICH8M-E supports four SATA II drives on the
PICOe-GM45A with independent DMA operations. SATA controller specifications are
listed below.
Supports four SATA II drives
Supports 3 Gbps data transfer speeds
Supports Serial ATA Specification, Revision 1.0a
The SATA connectors are shown in
720HFigure 2-10.
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