92hd005 Integrated Device Technology, 92hd005 Datasheet - Page 174

• Manufacturer Part Number: 92hd005
• Description: Four Channel Hd Audio Codec
• Manufacturer: Integrated Device Technology

IDT™
4-CHANNEL HD AUDIO CODEC WITH QUAD DIGITAL MICROPHONE INTERFACE
92HD005/92HD005D
4-CHANNEL HD AUDIO CODEC WITH QUAD DIGITAL MICROPHONE INTERFACE
3.4.29. ExtVolume Node (NID = 0x24)
3.4.29.1. ExtVolume WCap
[31:8]
[7:0]
Bit
[31:24]
[23:20]
[19:0]
Bit
Bitfield Name
Get
Divider
Rsvd
Bitfield Name
Rsvd2
Rsvd1
Table 423. ExtVolume WCap Command Response Format
Type
Table 421. PCBeep Gen Command Response Format
Table 422. ExtVolume WCap Command Verb Format
RW
RW
R
Reset
0x0
0x0
Verb ID
F00
RW
174
R
R
R
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) /
(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.
Reset
0x0
0x6
0x0
Reserved
Widget type = Volume Knob Widget.
Volume Knob (6h) if VOLUME enabled,
Vendor Defined (Fh) otherwise
Reserved. Software assumes capability of
unsolicited responses and a connection list
for this widget type.
Payload
09
92HD005/92HD005D
Description
Description
See bitfield table.
Response
PC AUDIO
V 1.1 4/08