Texas Instruments PCI1520 Manuale Utente
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.
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.
designing in the PCI1520.
Contents
1
PCI1520 Typical System Implementation ....................................................................................................................... 3
2
Power Considerations...................................................................................................................................................... 4
2.1
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
6.1
Multifunction Terminals ............................................................................................................................................. 8
6.2
SPKROUT................................................................................................................................................................. 8
6.3
SUSPEND#............................................................................................................................................................... 8
7
Interrupt Configurations .................................................................................................................................................. 9
7.1
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
8.1
EEPROM Configuration .......................................................................................................................................... 10
8.2
BIOS Considerations............................................................................................................................................... 11
8.2.1
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
9.1
D3 Wake Information .............................................................................................................................................. 13
9.1.1
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
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
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