XIO2000 datasheet(15/150 Pages) TI

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Introduction

November 2005

SCPS097B

2.4

Document Conventions

Throughout this data manual, several conventions are used to convey information. These conventions are

listed below:

To identify a binary number or field, a lower case b follows the numbers. For example: 000b is a 3-bit binary

field.

To identify a hexadecimal number or field, a lower case h follows the numbers. For example: 8AFh is a

12-bit hexadecimal field.

All other numbers that appear in this document that do not have either a b or h following the number are

assumed to be decimal format.

If the signal or terminal name has a bar above the name (for example, GRST), then this indicates the

logical NOT function. When asserted, this signal is a logic low, 0, or 0b.

Differential signal names end with P, N, +, or − designators. The P or + designators signify the positive

signal associated with the differential pair. The N or − designators signify the negative signal associated

with the differential pair.

RSVD indicates that the referenced item is reserved.

The power and ground signals in Figure 2−1 are not subscripted to aid in readability.

In Sections 4 through 6, the configuration space for the bridge is defined. For each register bit, the software

access method is identified in an access column. The legend for this access column includes the following

entries:

r – read access by software

u – updates by the bridge internal hardware

w – write access by software

c – clear an asserted status bit with a write-back of 1b by software

2.5

Document History

REVISION

DATE

REVISION

NUMBER

REVISION COMMENTS

05/2004

−

Product preview

08/2005

Initial release

2.6

Ordering Information

ORDERING NUMBER

NAME

VOLTAGE

PACKAGE

XIO2000

PCI-Express to PCI Bridge

3.3-V, 5.0-V tolerant PCI bus

I/Os with 3.3-V and 1.5-V power

terminals

201-terminal GZZ MicroStar

PBGA

XIO2000

PCI-Express to PCI Bridge

3.3-V, 5.0-V tolerant PCI bus

I/Os with 3.3-V and 1.5-V power

terminals

201-terminal ZZZ (Lead-Free)

MicroStar PBGA

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