Texas Instruments DUAL SOCKET PC CARD CONTROLLER PCI1520 User Manual

Pci1520 implementation guide, Application report

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Application Report

SCPA033 - October 2002

1

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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