Pci System Configurations - Digi NS9750 Hardware Reference Manual

Single chip 0.13μm cmos network-attached processor

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P C I s y s t e m c o n f i g u r a t i o n s

PCI system configurations

NS9750 can be connected to the PCI bus using an embedded (internal) or external PCI

bus arbiter. Figure 72 shows how NS9750 is connected to the PCI bus for a typical

system application using the embedded PCI bus arbiter, and where the NS9750

provides the central resource function (see "PCI central resource functions" on page

458). Up to three external masters are supported.

Figure 72: System connections to NS9750 — Internal arbiter and central resources

These pins are not connected because internal resistors tie these pins to the appropriate state.

INTB#,INTC#,

N S 9 7 5 0 H a r d w a r e R e f e r e n c e

PCI_CENTRAL_RSC_n

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