Texas Instruments manual PCI1520 Implementation Guide

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Application Report

SCPA033 - October 2002

PCI1520 Implementation Guide

Computer Connectivity Solutions

ABSTRACT

This document is provided to assist platform designers using the PCI1520 dual-socket PC Card controller. Detailed information can be found in the PCI1520 data manual. However, this document provides design suggestions for the various options when designing in the PCI1520.

			Contents
1	PCI1520 Typical System Implementation			3
2	Power Considerations			4
	2.1	Internal Voltage Regulator		4
	2.2	Clamping Rails		4
	2.3	Bypass Capacitors		4
3	Power Switch Implementation			5
4	PCI Bus Interface			6
5	PC Card Interface			7
6	Miscellaneous Pin Interface			8
	6.1	Multifunction Terminals		8
	6.2	SPKROUT		8
	6.3	SUSPEND#		8
7	Interrupt Configurations			9
	7.1	Parallel PCI Interrupts Only		9
	7.2	Parallel IRQ and Parallel PCI Interrupts		9
	7.3	Serial IRQ and Parallel PCI Interrupts		9
	7.4	Serial IRQ and Serial PCI Interrupts		9
8	Software Considerations			10
	8.1	EEPROM Configuration		10
	8.2	BIOS Considerations		11
		8.2.1	PCI Configuration Registers (Standard)	11
		8.2.2	PCI Configuration Registers (TI Extension)	12
		8.2.3	ExCA Compatibility Registers	12
		8.2.4	CardBus Socket Registers	12
9	Power Management Considerations			13
	9.1	D3 Wake Information		13
		9.1.1	GRST# Only Registers	14
		9.1.2	PME# Context Registers	15
	9.2	PME#/RI_OUT# Behavior		15
	9.3	CLKRUN# Protocol		15
	9.4	SUSPEND#		16
10	Pin Compatibility with Other Devices			16
11	Migration to the PCI1520 from the PCI1420			17
	11.1	Hardware and Pin Assignment Changes		17
	11.2	Configuration Register Changes		18
	11.3	Other Functional Differences		19
12	Migration to the PCI1420 from the PCI1225			20
	12.1	Hardware and Pin Assignment Changes		20
	12.2	Configuration Register Changes		21
	12.3	Other Functional Differences		21
13	Reference Schematics			22
14	References		......................................................................................................................................................................	24

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Contents PCI1520 Implementation Guide Document History CardBus Controller Block System Side PCI1520 Typical System ImplementationInternal Voltage Regulator Power ConsiderationsClamping Rails Bypass CapacitorsPower Switch Implementation Power Switch ImplementationPCI Bus Interface PC Card Interface Multifunction Terminals Miscellaneous Pin InterfaceParallel PCI Interrupts Only Interrupt ConfigurationsParallel IRQ and Parallel PCI Interrupts Serial IRQ and Parallel PCI InterruptsSoftware Considerations Eeprom ConfigurationMFUNC5=GPI4, MFUNC4=SCL Bios ConsiderationsPCI Configuration Registers TI Extension D3 Wake Information Power Management ConsiderationsGRST# Only Registers CLKRUN# Protocol PME#/RIOUT# BehaviorPin Compatibility with Other Devices Hardware and Pin Assignment Changes Migration to the PCI1520 from the PCI1420Configuration Register Changes Other Functional Differences Migration to the PCI1420 from the PCI1225 Configuration Register Changes U2A Reference SchematicsWAIT# Ready INPACK# Reset References Important Notice