Texas Instruments XIO2001 Manuale utente

XIO2001

Evaluation Module (EVM)

User's Guide

Literature Number: SCPU031A

February 2009–Revised December 2012

Contents

1 Read This First ................................................................................................................... 3

1.1 About This Manual ...................................................................................................... 3

1.2 How to Use This Manual ............................................................................................... 3

1.3 Information About Cautions and Warnings ........................................................................... 3

1.4 Related Documentation from Texas Instruments ................................................................... 3

2 Overview ............................................................................................................................ 4

3 EVM Features ..................................................................................................................... 4

3.1 PCI Express Connector ................................................................................................. 4

3.2 PCI Add-In Slots ......................................................................................................... 4

3.3 EEPROM Interface ...................................................................................................... 5

3.4 Test Header .............................................................................................................. 5

3.5 Clock Run (CLKRUN) ................................................................................................... 6

3.6 JTAG Header ............................................................................................................ 6

3.7 LEDs ...................................................................................................................... 6

4 FAQ/Troubleshooting .......................................................................................................... 7

4.1 BIOS Fails to Assign Memory Window to Bridge ................................................................... 7

4.2 ×16 Slots Only Support INTA .......................................................................................... 7

4.3 System Turns On When PCI Card Is Inserted Into EVM Or When EVM Is Plugged Into Slot ................ 7

4.4 What To Do If EVM Is Not Working ................................................................................... 8

5 Schematics ......................................................................................................................... 9

6 Bill of Materials ................................................................................................................. 13

2Table of Contents SCPU031A–February 2009–Revised December 2012

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User's Guide

SCPU031A–February 2009–Revised December 2012

XIO2001 Evaluation Module (EVM)

1 Read This First

1.1 About This Manual

This manual describes the operation of the XIO2001 evaluation module (EVM) from Texas Instruments.

1.2 How to Use This Manual

This document contains the following sections:

•Overview

•EVM Features

•FAQ/Troubleshooting

•Schematics

•Bill of Materials

1.3 Information About Cautions and Warnings

This manual may contain cautions and warnings.

CAUTION

This is an example of a caution statement.

A caution statement describes a situation that could potentially damage your

software or equipment.

WARNING

This is an example of a warning statement.

A warning statement describes a situation that could potentially

cause harm to you.

1.4 Related Documentation from Texas Instruments

Table 1 contains a list of data manuals that have detailed descriptions of the integrated circuits used in the

design of the TAS3208EVM-LC. The data manuals can be obtained at www.ti.com.

SCPU031A–February 2009–Revised December 2012 XIO2001 Evaluation Module (EVM)

FAQ/Troubleshooting

www.ti.com

4.4 What To Do If EVM Is Not Working

4.4.1 Check EVM Power

Diodes LED1, LED2, LED4 and LED5 show the status of the 5-V, 3.3-V, 12-V, and –12-V rails,

respectively. 1.5 V may be probed on the top pad of C44 (directly next to U3), and –12 V may be probed

from C100. A ground reference is available at J1 pin 11 and JP1 pins

www.ti.com

Schematics

range will not be claimed by the bridge. The I/O window for the XIO2001 has a minimum size of 4

KBytes and is naturally 4K-aligned. Typically, most systems use only 16-bit addressing for I/O

transactions, so the upper base and limit registers remain 0.

• Memory base and memory limit registers – PCI offsets 0×20 and 0×22 : Similar to the I/O base and

limit registers, the bridge must be programmed with a memory address window containing the

nonprefetchable memory resources of all downstream PCI devices requiring nonprefetchable memory.

Memory windows have a minimum size of 1 MByte and are naturally 1M-aligned. The bridge does not

claim either a memory transaction initiated from upstream that does not fall within its memory window

nor memory transactions initiated downstream that do fall within its memory window.

• Prefetchable memory base, prefetchable memory limit, prefetchable base upper 32-bit, and

prefetchable limit upper 32-bit registers – PCI offsets 0x24, 0x26, 0x28, and 0×2C: Identical to the

memory base and limit registers but for prefetchable memory resources. The prefetchable base upper

32-bit, and prefetchable limit upper 32-bit registers are only used if 64-bit addressing is in use and in

most systems both of these registers will remain all zeroes. If 64-bit addressing is desired and the

memory window for devices behind the XIO2001 resides all or in part in 64-bit memory space then the

prefetchable base upper 32-bit register will combine with the prefetchable base register and the

prefetchable limit upper 32-bit register will combine with the prefetchable limit register to create 64-bit

base and limit registers. All memory addresses between the two addresses will be considered to be

located behind the bridge.

• For all base and limit registers any case in which the limit register contains a lower address than the

base register will be considered invalid. In this situation the bridge will react as if all resources of that

type resided upstream of the bridge. The bridge will respond to all downstream transactions of that

type with Unsupported Request and will claim and forward upstream any transactions of that type that

initiate on the PCI bus.

Depending on desired functionality, other PCI registers on the XIO2001 may have to be configured.

Consult the XIO2001 Data Manual for a description of the previous registers or for any other XIO2001

registers.

4.4.4 Check Devices Downstream From Bridge

Once the bridge is communicating and is properly configured, check if devices downstream from the

bridge have been configured as required. Check the Windows Device Manager to determine if the device

drivers have been loaded or if other problems exist with the device. Once you have performed these

checks, you can perform PCI transactions on the bus and examine them with any standard PCI analyzer.

5 Schematics

Schematics for the XIO2001 EVM are shown on the following pages.

SCPU031A–February 2009–Revised December 2012 XIO2001 Evaluation Module (EVM)

Pull Ups/Pull DownsBridge Power

Filtering/Decoupling

Schematics

www.ti.com

10 XIO2001 Evaluation Module (EVM) SCPU031A–February 2009–Revised December 2012

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