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Intel 21152 manual Interrupt Routing, Interrupts from Devices to EB152 Fingers

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Interrupt Routing

Table 3-2lists the interrupts from the devices on the secondary slots to the interrupts on the EB152 fingers.

Table 3-2.	Interrupts from Devices to EB152 Fingers

	Interrupts from Devices on	Interrupts on EB152 Fingers
	Secondary Slots

	INTA4 L	INTA L
	INTD5 L
	INTC6 L
	INTB7 L

	INTB4 L	INTB L
	INTA5 L
	INTD6 L
	INTC7 L

	INTC4 L	INTC L
	INTB5 L
	iNTA6 L
	INTD7 L

	INTD4 L	INTD L
	INTC5 L
	INTB6 L
	INTA7 L

Note: In the first column of Table 3-2, the number after each interrupt pin is the device number of the devices in the secondary slots. The L indicates that the assertion level is low.

3-2	21152 PCI-to-PCI Bridge Evaluation Board User’s Guide

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Intel 21152 manual Interrupt Routing, Interrupts from Devices to EB152 Fingers

Contents

July 21152 PCI-to-PCI Bridge Evaluation BoardUser’s Guide 21152 PCI-to-PCI Bridge Evaluation Board User’s Guide Contents Figures Tables1.1 Overview 1.2 FeaturesIntroduction Figure 1-1. EB152 Major Components 1.3 Major ComponentsIntroduction Viewed from SideJumper Connections 1.4 Jumpers1.5 Secondary Slot Numbering and IDSEL Mapping Figure 1-2. Secondary PCI Slot NumberingFigure 1-4. EB152 with Two Secondary Bus Option Cards 1.6 Typical ConfigurationsFigure 1-3. EB152 with One Secondary Bus Option Card IntroductionIntroduction Figure 1-5. Tri-Level with Two EB152sFigure 1-6. Four PCI Buses in a Tri-Level Hierarchy EB152Page 2.2 Hardware Requirements Installation2.1 Specifications 2.3 Software Requirements2.4 Installation Procedure InstallationInterrupt Routing Interrupt ORingInterrupt Routing Interrupts from Devices to EB152 FingersSecondary Bus Arbitration Internal Arbitration Jumper Positions Secondary Bus ArbitrationFigure 4-1. Arbitration Jumpers Viewed from SideJumper External PAL Arbitration Jumper PositionsSecondary Bus Arbitration PositionPage Kit Contents Page Support, Products, and Documentation http//developer.intel.com