Cirrus-logic CS4207 Manual do Utilizador descarregar pdf (Página 81)

DS880F4 81

CS4207

PS-Set is a PowerState field which defines the current power setting of the referenced node. Since this

node is of type other than an Audio Function Group node, the actual power state is a function of both this

setting and the PowerState setting of the Audio Function Group node under which this node was enumer-

ated (is controlled).

PS-Act is a PowerState field which indicates the actual power state of this node. Within the Audio Func-

tion Group node, this field will always be equal to the PS-Set field (modulo the time required to execute a

power state transition). Within this type of node, this field will be the lower power consuming state of either

a) the PS-Set field of the currently referenced node or b) the PS-Set field of the Audio Function Group

node under which the currently referenced node was enumerated (is controlled).

6.8.7 Pin Widget Control

Get Parameter Command Format:

Set Parameter Command Format:

3:0 Read/Write 0011b

Power State Set (PS-Set): Writes to these bits

set the Audio Function Group to the Power State

as described below:

PSS = ’0000’b; D0 - Fully on.

PSS = ‘0001’b; D1 - Not Supported

PSS = ‘0010’b; D2 - Not Supported

PSS = ‘0011’b; D3 - Allows for lowest possible

power consumption under software control. See

“D3 Lower Power State Support” on page 26 for

more information.

PSS = ‘0100’b; D4 - Not Supported

Bits [31:28] Bits [27:20] Bits [19:8] Bits [7:0]

CAd = X Node ID = 09h Verb ID = F07h Payload = 00h

Bits [31:28] Bits [27:20] Bits [19:8] Bits [7:0]

CAd = X Node ID = 09h Verb ID = 707h Payload = xxh

Bits Type Default Description

1 2 ... 76 77 78 79 80 81 82 83 84 85 86 ... 147 148

Sem comentários

Cirrus-logic CS4207 Manual do Utilizador Página 81