Intel E3815 FH8065301567411 Data Sheet

 

Intel

®

 Atom™ Processor E3800 Product Family

Datasheet

2681

Power Management control and status

Default: 00000000h

MSI Capability ID

Default: 7005h

PCI Configuration Register

(Size: 32 bits)

31

28

24

20

16

12

8

4

0

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

DT

BPCCE

B23

Re

se

rv

ed

_

0

PME

S

Re

se

rv

ed

_

1

PME

E

Re

se

rv

ed

_

2

PS

31:24

0h

RO

Data. Does not apply.

23

0h

RO

Bus power control enable. Does not apply.

22

0h

RO

Does not apply.

21:16

0h

RO

Reserved

15

0h

RW1C

PME Status (PMES): This bit is set when the Intel HD Audio controller would 

normally assert the PME# signal independent of the state of the PME_En bit. This bit 

resides in the Suspend well. This bit is in the Suspend well and cleared on a power-on 

reset. Software must not make assumptions about the reset state of this bit and must 

set it appropriately.

14:9

0h

RO

Reserved

8

0h

RW

PME enable

7:2

0h

RO

reserved

1:0

0h

RW

Power State (PS): This field is used both to determine the current power state of the 

Intel HD Audio controller and to set a new power state. The values are: 00 D0 state 11 

D3HOT state If software attempts to write a value of 10b or 01b in to this field, the write 

operation must complete normally; however, the data is discarded and no state change 

occurs. When in the D3HOT states, the Intel HD Audio controllers configuration space is 

available, but the I/O and memory spaces are not. Additionally, interrupts are blocked. 

When software changes this value from the D3HOT state to the D0 state, an internal 

warm (soft) reset is generated, and software must re-initialize the function.

PCI Configuration Register

(Size: 16 bits)