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DM9102D

Single Chip Fast Ethernet NIC Controller

Davicom Semiconductor, Inc. 

6.1.12 Power Management Register (xxxxxx50H~PCIPMR)

31

PMC

Power Management Capabilities

Next Item Pointer

Capability Identifier

16 15

87

0

Next Item Pointer

Capability ID

Bit

31:27

Default

11000

26:25

00

24:22

011

21

1

20

0

19

0

18:16

010

15:8

00H

7:0

01H

Type

RO

RO

RO

RO

RO

RO

RO

RO

RO

Description

PME_ Support

This field indicates that the power states in which the function may assert PME#. A

value of 0 for any bit indicates that the function is not capable of asserting the PME#

signal while in that power state

bit27 Æ PME# support D0

bit28 Æ PME# support D1

bit29 Æ PME# support D2

bit30 Æ PME# support D3(hot)

bit31 Æ PME# support D3(cold)

DM9102D’s bit31~27=11000 indicates PME# can be asserted from D3(hot) &

D3(cold)

These bits can be load from EEPROM word 7 bit [7:3]

Reserved

These two bits can be load from EEPROM word 7 bit [1:0]

Aux_ Current

This field reports the 3.3Vaux auxiliary current requirement for the PCI function.

The default value of this field is 011 means 160mA and it can be loaded from

EEPROM word 4 bit [15:13] if EEPROM word 4 bit [9] is 1

A “1” indicates that the function requires a device specific initialization sequence

following transition to the D0 uninitialized state

This bit can be load from EEPROM word 7 bit [2]

Reserved

PME# Clock

“0” indicates that no PCI clock is required for the function to generate PME#

Version

A default value of 010 indicates that this function complies with the Revision 1.1 of

the PCI Power Management Interface Specification

This value can be loaded from EEPROM word 4 bit [12:10] if EEPROM word 4 bit

[9] is 1

Next Item Pointer

The offset into the function’s PCI Configuration Space pointing to the location of

next item in the function’s capability list is “00H”

Capability Identifier

When “01H” indicates the linked list item as being the PCI Power Management

Registers

Final

19

Version: DM9102D-DS-F01

May 10, 2006

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