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3 intel® ich9m low pin count (lpc) interface, 4 intel® ich9m pci interface – IEI Integration PICOe-GM45A User Manual

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PICOe-GM45A Half-Size CPU Card

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2.5.3 Intel

®

ICH9M Low Pin Count (LPC) Interface

The ICH9M LPC interface complies with the LPC 1.1 specifications. The LPC bus from the

ICH9M is connected to the Super I/O chipset.

2.5.4 Intel

®

ICH9M PCI Interface

The PCI interface on the ICH9M 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

33 MHz

5V tolerant PCI signals (except PME#)

Integrated PCI arbiter supports up to seven PCI bus masters

The PCI bus is connected to an interface gold finger on the bottom of the CPU card and

supports up to four expansion PCI cards on the backplane.

Figure 2-9: PCI Golden Finger