STAC9227 Datasheet, PDF (188/237 Pages) Integrated Device Technology – 8-CHANNEL HIGH DEFINITION AUDIO CODEC

STAC9227/9228/9229/9230
8-CHANNEL HIGH DEFINITION AUDIO CODEC
PC AUDIO
Bit
[31:8]
[7:0]
Table 446. PCBEEP Gen Command Response Format
Bitfield Name
RW
Reset
Description
Rsvd
R
0x0
Reserved
Divider
Enable internal PC-Beep generation.
Divider is 00h - disables internal PC Beep
generation and enables normal operation of
the CODEC.
Divider is not 00h - generates the beep tone
on all Pin Complexes that are currently
configured as outputs.
The Azalia spec states that the beep tone
RW
0x0
frequency = (48 KHz Azalia 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.
6.29. CD Node (NID = 0x12)
6.29.1. CD WCap
Get
Table 447. CD WCap Command Verb Format
Verb ID
Payload
F00
09
Response
See bitfield table.
Bit
[31:24]
[23:20]
[19:16]
Table 448. CD WCap Command Response Format
Bitfield Name
RW
Reset
Description
Rsvd2
R
0x0
Reserved
Type
R
0x4
Widget type = Pin Complex
Delay
R
0x0
Number of sample delays through widget
IDT™ 8-CHANNEL HIGH DEFINITION AUDIO CODEC
188
IDT CONFIDENTIAL
STAC9227/9228/9229/9230V 1.0 MARCH 2007