IEI Integration PCIE-Q350 v1.30 - Manual (Page 49)

PCIE-Q350 PICMG 1.3 CPU Card
Page 29
2.7 PCI Bus Components
2.7.1 PCI Bus Overview
The PCI bus is connected to the components listed below:
IT8209R PCI arbiter
PCI edge connector
The PCI bus complies with PCI Local Bus Specification, Revision 2.3 and supports 33MHz
PCI operations.
2.7.2 ITE IT8209 PCI Arbiter
One of the Intel® ICH9DO Southbridge PCI lanes is connected to an ITE IT8209 PCI
arbiter. One set of SYSGNT# and SYSREQ# on the ITE IT8209 supports three PCI
Masters thereby enabling the PCIE-Q350 to support an additional two PCI Masters. The
ITE IT8209 PCI arbiter is shown in Figure 2-16 below.
Figure 2-16: PCI Arbiter
One of the PCI masters on the ITE IT8209 PCI arbiter is connected to the Intel® ICH9DO
Southbridge. The remaining two are connected to the PCI edge connector to facilitate PCI
expansion on the backplane. Some of the features of the ITE IT8209 PCI arbiter are listed
below:
Extended PCI Arbiter
Input PCI Clock