STAC9228 Integrated Device Technology, STAC9228 Datasheet - Page 200

• Manufacturer Part Number: STAC9228
• Description: Theater Quality Eight Channel High Definition Audio Codec With Digital Microphone Interface
• Manufacturer: Integrated Device Technology

IDT™
STAC9227/9228/9229/9230
8-CHANNEL HIGH DEFINITION AUDIO CODEC
8-CHANNEL HIGH DEFINITION AUDIO CODEC
6.31.7. VolumeKnob Cntrl
[31:8]
[31:8]
[5:0]
[6:0]
Bit
Bit
[7]
[6]
[7]
Set1
Get
Table 476. VolumeKnob UnsolResp
Bitfield Name
Bitfield Name
Table 478. VolumeKnob Cntrl
Volume
Rsvd2
Rsvd1
Direct
Rsvd
Tag
En
Table 477. VolumeKnob Cntrl
Verb ID
IDT CONFIDENTIAL
F0F
70F
RW
RW
RW
RW
RW
RW
200
R
R
R
See bits [7:0] of bitfield table.
Reset
Reset
0x00
0x00
0x7F
0x0
0x0
0x0
0x0
Command Response Format
Command Verb Format
Command Response Format
Payload
Reserved
Allow generation of Unsolicited Responses.
Unsolicited response events occur upon
jack-insertion OR completion of a
Jack-Sense cycle.
Reserved
Software programmable field returned in top
six bits (31:26) of every Unsolicited
Response generated by this node.
Reserved
Direct = 1 causes the volume control to
directly control the hardware volume of the
slave amps.
Direct = 0 causes unsolicited responses to
be generated.
Volume, specified in steps of amplifier gain
00
STAC9227/9228/9229/9230V 1.0 MARCH 2007
Description
Description
See bitfield table.
0000_0000h
Response
PC AUDIO