beautypg.com

Power management control/status (pmcsr), 0x44–0x45 – Avago Technologies LSI53C1000R User Manual

Page 131

background image

PCI Configuration Registers

4-19

Version 2.2

Copyright © 2000–2003 by LSI Logic Corporation. All rights reserved.

D2S

D2_Support

10

The LSI53C1000R sets this bit to indicate support for
power management state D2. Bits 9 and 10 are set to
one, indicating support for the D1 and D2 power states.

D1S

D1_Support

9

The LSI53C1000R sets this bit to indicate support for
power management state D1. Bits 9 and 10 are set to
indicate support for the D1 and D2 power states.

AUX_C

Aux_Current

[8:6]

The LSI53C1000R always returns zeros. This feature is
not supported.

DSI

Device Specific Initialization

5

This bit is cleared to indicate that the LSI53C1000R
requires no special initialization before the generic class
device driver is able to use it.

R

Reserved

4

PMEC

PME Clock

3

Bit 3 is cleared because the LSI53C1000R does not
provide a PME pin.

VER[2:0]

Version

[2:0]

These three bits are set to 0b010 to indicate that the
LSI53C1000R complies with Revision 1.1 of the PCI
Power Management Interface Specification.

Registers: 0x44–0x45

Power Management Control/Status (PMCSR)
Read/Write

PST

PME_Status

15

The LSI53C1000R always returns a zero for this bit,
indicating that PME signal generation is not supported
from D3cold.

15

14 13 12

9

8

7

2

1

0

PST DSCL

DSLT

PEN

R

PWS[1:0]

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

This manual is related to the following products: