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STAC9271 Datasheet(PDF) 193 Page - Integrated Device Technology

Part # STAC9271
Description  10-CHANNEL HIGH DEFINITION AUDIO CODEC
PDF  223 Pages
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Manufacturer  IDT [Integrated Device Technology]
Direct Link  http://www.idt.com
Logo IDT - Integrated Device Technology

STAC9271 Datasheet(HTML) 193 Page - Integrated Device Technology

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STAC9271/9272/9273/9274
10-CHANNEL HIGH DEFINITION AUDIO CODEC
PC AUDIO
IDT™
10-CHANNEL HIGH DEFINITION AUDIO CODEC
193
STAC9271/9272/9273/9274 V 1.0 MARCH2007
IDT CONFIDENTIAL
6.31.8. VolumeKnob VCSR0
6.32. InPort0Vol Node (NID = 0x18)
6.32.1. InPort0Vol WCap
Table 479. VolumeKnob Cntrl
Command Response Format
Bit
Bitfield Name
RW
Reset
Description
[31.:8]
Rsvd
R
0x0
Reserved
[7]
Direct
RW
0x0
Direct = 1 causes the volume control to directly control the
hardware volume of the slave amps. Direct = 0 causes
unsolicited responses to be generated.
[6.:0]
Volume
RW
0x7F
Volume, specified in steps of amplifier gain
Table 480. VolumeKnob VCSR0
Command Verb Format
Verb ID
Payload
Response
Get
FE0
00
See bitfield table.
Set1
7E0
See bits [7:0] of bitfield table.
0000_0000h
Table 481. VolumeKnob VCSR0
Command Response Format
Bit
Bitfield Name
RW
Reset
Description
[31.:4]
Rsvd
R
0x0
Reserved
[3]
Continuous
RW
0x1
Allow continuous incrementing/
decrementing of the volume knob value.
[2.:0]
Rate
RW
0x0
Volume knob update rate, for continuous
mode and de-bouncing (0.7 = 2.5.20 Hz, in
increments of 2.5 Hz)
Table 482. InPort0Vol WCap
Command Verb Format
Verb ID
Payload
Response
Get
F00
09
See bitfield table.



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