XIO2221 datasheet(16/196 Pages) TI1

16 / 196 page

XIO2221

SCPS216A – JULY 2009 – REVISED FEBRAURY 2010

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2.2

Related Documents

•

PCI Express™ to PCI/PCI-X Bridge Specification, Revision 1.0

•

PCI Express™ Base Specification, Revision 1.1

•

PCI Express™ Card Electromechanical Specification, Revision 1.1

•

PCI Local Bus Specification, Revision 2.3 and Revision 3.0

•

PCI-to-PCI Bridge Architecture Specification, Revision 1.1

•

PCI Bus Power-Management Interface Specification, Revision 1.1 and Revision 1.2

•

1394 Open Host Controller Interface (OHCI) Specification, Release 1.2

•

High-Performance Serial Bus, IEEE Std 1394-1995

•

High-Performance Serial Bus, Amendment 1, IEEE Std 1394a-2000

•

High-Performance Serial Bus, Amendment 2, IEEE Std 1394b-2002

•

Express Card Standard, Release 1.0 and Release 1.1

•

PCI Express™ Jitter and BER white paper

•

PCI Mobile Design Guide, Revision 1.1

2.3

Documents Conventions

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

•

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), 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.

•

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 bit with a write back of 1b by software. Write of zero to the field has no effect.

–

S: The field may be set by a write of one. Write of zero to the field has no effect.

–

NA: Not accessible or not applicable

•

The XIO2221 consists of a PCIe to PCI translation bridge, where the secondary PCI bus is internally

connected to a 1394b OHCI with a 1-port PHY. When describing functionality that is specific to the

PCIe to PCI translation bridge, the term bridge is used to reduce text. The term 1394b OHCI is used to

reduce text when describing the 1394b OHCI with 1-port PHY function.

•

LLC refers to the 1394 link layer controller.

2.4

Ordering Information

PACKAGE

VOLTAGE

ORDERABLE PART NUMBER

167-terminal (Lead-Free) PBGA – ZAY

3.3-V and 1.5-V power terminals

XIO2221ZAY

Overview

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