STAC9227 Datasheet, PDF (197/237 Pages) Integrated Device Technology – 8-CHANNEL HIGH DEFINITION AUDIO CODEC

STAC9227/9228/9229/9230
8-CHANNEL HIGH DEFINITION AUDIO CODEC
PC AUDIO
Table 464. ADATOut VCSR0 Command Response Format
Bit
Bitfield Name
RW
Reset
Description
ADAT Lightpipe Control Used in
conjunction with the ADAT Sample
Rate in the stream converter to
generate the 4 bit ADAT control
signals.
ADAT0 (U0): Time Code FLAG
ADAT1 (U1): MIDI FLAG
ADAT2 (U2):
0 = 44.1 / 48 KHz audio (1X operation)
1 = 88.2 / 96 KHz audio (2X operation)
[3:0]
ADAT
RW
0x0
ADAT3 (U3):
1 = 176.4 / 192 KHz audio (4x
operation). User bits U0 and U1 are
always under software control. User
bits U2 and U3 are also under software
control if ADATFRMT is set. If
ADATFRMT = 0, then bits 3:2 here are
ignored and the bits transmitted as
U3:U2 are controlled by hardware
according to the sample-rate of the
data stream.
6.31. VolumeKnob Node (NID = 0x24)
6.31.1. VolumeKnob WCap
Table 465. VolumeKnob WCap Command Verb Format
Verb ID
Payload
Response
Get
F00
09
See bitfield table.
Bit
[31:24]
[23:20]
[19:0]
Table 466. VolumeKnob WCap Command Response Format
Bitfield Name RW
Reset
Description
Rsvd2
R
0x0
Reserved
Type
R
0x6 = Enabled
0xF = Disabled
Widget type = Volume Knob Widget
Rsvd1
R
Reserved. Software assumes capability of
0x0
unsolicited responses and a connection list
for this widget type.
IDT™ 8-CHANNEL HIGH DEFINITION AUDIO CODEC
197
IDT CONFIDENTIAL
STAC9227/9228/9229/9230V 1.0 MARCH 2007