910GL datasheet(156/426 Pages) INTEL

номер детали	910GL

подробное описание детали	Express Chipset

PDF	426 Pages

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производитель	INTEL [Intel Corporation]

домашняя страница	http://www.intel.com

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Host-PCI Express* Bridge Registers (D1:F0)

(Intel® 82915G/82915P/82915PL Only)

156

Datasheet

8.1.38

LSTS—Link Status (D1:F0)

PCI Device:

Address Offset:

B2h

Default Value:

1001h

Access:

Size:

16 bits

This register indicates PCI Express link status.

Bit

Access &

Default

Description

15:13

Reserved

Slot Clock Configuration

0 = The device uses an independent clock irrespective of the presence of a

reference on the connector.

1 = The device uses the same physical reference clock that the platform provides

on the connector.

Link Training:

1 = Link training is in progress. Hardware clears this bit once Link training is

complete.

Training Error:

1 = This bit is set by hardware upon detection of unsuccessful training of the Link

to the L0 Link state.

9:4

00h

Negotiated Width: This field indicates negotiated link width. This field is valid

only when the link is in the L0, L0s, or L1 states (after link width negotiation is

successfully completed).

00h = Reserved

01h = X1

04h = Reserved

08h = Reserved

10h = X16

All other encodings are reserved.

3:0

Negotiated Speed: This field indicates negotiated link speed.

1h = 2.5 Gb/s

All other encodings are reserved.

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