STE10A datasheet(37/82 Pages) STMICROELECTRONICS

37 / 82 page

STE10/100A

Registers and descriptors description

37/82

7~0

CAPID

Capability identifier. This value is always 01h,

indicating the link list item as being the PCI power

management registers.

01h

CR49 (offset = c4h), PMR1, Power management register 1

31~16

---

Reserved

PMEST

PME_Status. This bit is set whenever the

STE10/100A detects a wake-up event, regardless of

the state of the PME-En bit.

Writing a “1” to this bit will clear it, causing the

STE10/100A to deassert PME# (if so enabled).

Writing a “0” has no effect.

If PSD3c (bit 31 of PMR0) is cleared (i.e. it does not

support PME# generation from D3cold), this bit is by

default 0; otherwise, PMEST is cleared upon power-

up reset only and is not modified by either hardware

or software reset.

XR/W1C(1)

14,13

DSCAL

Data_Scale. Indicates the scaling factor to be used

when interpreting the value of the data register. This

field is required for any function that implements the

data register.

The STE10/100A does not support data register and

Data_Scale.

00b

12~9

DSEL

Data_Select. This four bit field is used to select

which data is to be reported through the data

for any function that implements the data register.

The STE10/100A does not support Data_select.

0000b

R/W

8PME_En

PME_En. When set, enables the STE10/100A to

assert PME#. When cleared, disables the PME#

assertion.

If PSD3c (bit 31 of PMR0) is cleared (i.e. it does not

support PME# generation from D3cold), this bit is by

default 0; otherwise, PME_En is cleared upon power

up reset only and is not modified by either hardware

or software reset.

XR/W

Table 6.

Configuration registers description (continued)

Bit #

Name

Description

Default

RW type

STE10A Datasheet(PDF) 37 Page - STMicroelectronics

STE10A Datasheet(HTML) 37 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82

Datasheet Download

Link URL