Intel 8 LAN manual 1.4.15Shared Initialization Control Word 13h, ICH8-NVMInformation Guide

Page 13
1.4.15Shared Initialization Control (Word 13h)

ICH8—NVM Information Guide

1.4.15Shared Initialization Control (Word 13h)

This word controls general initialization values.

Table 11.

Shared Initialization Control (Word 13h)

 

 

 

 

 

 

 

Bit

Name

Default

 

Description

 

 

 

 

 

 

 

 

 

Valid Indication

 

 

 

 

This is a 2-bit field indicating whether a valid NVM is present to the

 

 

 

 

MAC. If this field does not equal 10b, the MAC does not read the

 

15:14

SIGN

10b

NVM data and uses default values for device configuration.

 

00b = Invalid NVM.

 

 

 

 

 

 

 

 

01b = Invalid NVM.

 

 

 

 

10b = Valid NVM present.

 

 

 

 

11b = Invalid NVM.

 

 

 

 

 

 

13:11

Reserved

010b

These bits are reserved and should be set to 010b.

 

 

 

 

 

 

10

Reserved

1b

Reserved. Always set to 1b.

 

 

 

 

 

 

 

 

 

For ICH8 designs that support an ACBS implementation using LAN

 

 

 

 

Power Control (LAN_PHYPC), this bit enables or disables PHY power

 

 

 

 

down.

 

9

PHY PD Ena

1b

0b

= PHY power down feature is disabled.

 

1b

= PHY power down feature is enabled to power down at DMoff/

 

 

 

 

 

 

 

 

D3 without Wake on LAN.

 

 

 

 

This bit is loaded to the PHY Power Down Enable bit in the

 

 

 

 

CTRL_EXT register.

 

 

 

 

 

 

8

Reserved

0b

This bit is reserved and should be set to 0b.

 

 

 

 

 

 

 

 

 

This field indicates the PHY device type.

 

 

 

 

00b = 82566 PHY - GLCI mode

 

7:6

PHYT

00b

01b = Reserved

 

10b = 82562V PHY - PCIe mode, LCI mode

 

 

 

 

 

 

 

 

11b = Reserved

 

 

 

 

This field is reflected in the PHYTYPE field in the Status register.

 

 

 

 

 

 

5

Reserved

0b

Reserved. Must be set to 0b.

 

 

 

 

 

 

 

 

 

Force Speed Enable

 

4

FRCSPD

0b

0b

= Normal operation.

 

 

 

 

1b

= Use ICH8 speed.

 

 

 

 

 

 

 

 

 

Force Duplex

 

3

FD

0b

0b

= Normal operation.

 

 

 

 

1b

= Use ICH8 speed.

 

 

 

 

 

 

 

 

 

This bit is loaded to the CTRL_EXT.EnaKumCK16 bit and enables

 

 

 

 

the reduction of the internal JCLK to one-sixteenth of the external

 

2

CLK_CNT_1_16

1b

NJCLK at the GLCI interface in Gigabit Ethernet mode.

 

 

 

 

0b

= Reduction is disabled.

 

 

 

 

1b

= Reduction is enabled.

 

 

 

 

 

 

 

 

 

This bit enables the automatic reduction of DMA frequency. It is

 

1

CLK_CNT_1_4

0b

mapped to STATUS[31].

 

0b

= Automatic reduction disabled.

 

 

 

 

 

 

 

 

1b

= Automatic reduction enabled.

 

 

 

 

 

 

 

Dynamic Clock

 

Dynamic Clock Gating

 

0

1b

0b

= Disable.

 

Gating

 

 

 

1b

= Enable.

 

 

 

 

 

 

 

 

 

 

13

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Contents 316234-006Revision JanuaryIntel Corporation P.O. Box 5937 Denver, CO Tables ContentsRevision History 1.0Non-VolatileMemory NVM 1.2NVM Programming Procedure Overview1.1Introduction BIOS Region ME Region GbE Region Flash Descriptor Figure 1. LAN NVM RegionsRegion 1.3.1Command Line Parameters 1.3EEUPDATE UtilityExample 1. EEUPDATE /D file1.eep Table 1. LAN NVM Address Map 1.4LAN NVM Format and Contents1.4.2Reserved Word 03h 1.4.1Ethernet Individual Address Words 00h - 02hReserved Word 03h 1.4.4Image Version Information Word 05h 1.4.3Reserved Word 04h1.4.5Reserved Word 06h 1.4.6Reserved Word 07h1.4.9Subsystem ID Word 0Bh 1.4.8PCI Initialization Control Word 0Ah1.4.10Subsystem Vendor ID Word 0Ch PCI Initialization Control Word Word 0AhLAN Power Consumption Word 10h 1.4.14LAN Power Consumption Word 10h1.4.11Device ID Word 0Dh 1.4.12Vendor ID Word 0EhShared Initialization Control Word 13h 1.4.15Shared Initialization Control Word 13h1.4.17Extended Configuration Word 2 Word 15h 1.4.16Extended Configuration Word 1 Word 14h1.4.18Extended Configuration Word 3 Word 16h Extended Configuration Word 1 Word 14hLED 1 Configuration and Power Management Word 17h LED Modes 1.4.20LED 0 and 2 Configuration Defaults Word 18h1.4.21 LED 0 and 2 Configuration Defaults Word 18hFuture Initialization Word 1 Words 19h 1.4.22Table 18. Boot Agent Main Setup Options 1.4.23.1Boot Agent Main Setup Options Word 30h1.4.23PXE Words Words 30h - 3Eh prompt message appears, if enabled by DIM NVM Information Guide-ICH8 Disable Protocol Select 1.4.23.4IBA Capabilities Word 33h 1.4.24Checksum Word 3FhTable 21. IBA Capabilities LAN NVM Contents Appendix A ICH8 NVM Contents and Sample ImagesA.1 82566DM NVM Image with ICH8 A.2 82566MM NVM Image with ICH8M A.3 82566MC NVM Image with ICH8 A.4 82562V NVM Image with ICH8 Note This page intentionally left blank