92HD005 Datasheet, PDF (174/205 Pages) Integrated Device Technology – 4-CHANNEL HD AUDIO CODEC WITH QUAD DIGITAL MICROPHONE INTERFACE

92HD005/92HD005D
4-CHANNEL HD AUDIO CODEC WITH QUAD DIGITAL MICROPHONE INTERFACE
PC AUDIO
Table 421. PCBeep Gen Command Response Format
Bit Bitfield Name RW Reset
Description
[31:8]
Rsvd
R 0x0 Reserved
Enable internal PC-Beep generation.
Divider = 00h - disables internal PC Beep generation and
enables normal operation of the CODEC.
Divider not equal to 00h - generates the beep tone on all Pin
Complexes that are currently configured as outputs.
The HD Audio spec states that:
beep tone frequency = (48 KHz HD Audio SYNC rate) /
[7:0]
Divider
RW 0x0 (4*Divider),
producing tones from 47 Hz to 12 KHz (logarithmic scale).
Instead, this part generates tones with frequency = 48000 *
(257 - Divider) / 1024, yielding a linear range from 12 KHz to
93.75 Hz in steps of 46.875 Hz. If JackSenseVSR[Rate2x],
then the beep tones generated have frequency = 48000 * (513
- Divider) / 1024, yielding a range of 24 KHz to 12093.75 Hz in
steps of 46.875 Hz.
3.4.29. ExtVolume Node (NID = 0x24)
3.4.29.1. ExtVolume WCap
Table 422. ExtVolume WCap Command Verb Format
Verb ID
Payload
Response
Get
F00
09
See bitfield table.
Bit
[31:24]
[23:20]
[19:0]
Table 423. ExtVolume WCap Command Response Format
Bitfield Name
RW
Reset
Description
Rsvd2
R
0x0
Reserved
Type
Widget type = Volume Knob Widget.
R
0x6
Volume Knob (6h) if VOLUME enabled,
Vendor Defined (Fh) otherwise
Rsvd1
Reserved. Software assumes capability of
R
0x0
unsolicited responses and a connection list
for this widget type.
IDT™
174
4-CHANNEL HD AUDIO CODEC WITH QUAD DIGITAL MICROPHONE INTERFACE
92HD005/92HD005D
V 1.0 12/06