stac9272 Integrated Device Technology, stac9272 Datasheet - Page 181

• Manufacturer Part Number: stac9272
• Description: 10-channel High Definition Audio Codec
• Manufacturer: Integrated Device Technology

IDT™
STAC9271/9272/9273/9274
10-CHANNEL HIGH DEFINITION AUDIO CODEC
10-CHANNEL HIGH DEFINITION AUDIO CODEC
6.28.4. PCBEEP Gen
[31.:8]
[6.:0]
[7.:0]
Bit
Bit
[7]
Set1
Get
Bitfield Name
Bitfield Name
Table 445. PCBEEP OutAmpCap
Divider
Rsvd1
Offset
Rsvd
Table 447. PCBEEP Gen
Table 446. PCBEEP Gen
Verb ID
IDT CONFIDENTIAL
F0A
70A
RW
RW
RW
181
R
R
R
See bits [7:0] of bitfield table.
Reset
Reset
Command Response Format
0x03
0x0
0x0
0x0
Command Verb Format
Command Response Format
Payload
Reserved
0dB-step is programmed with this offset
Reserved
Enable internal PC-Beep generation.
Divider = 00h - disables internal PC Beep
generation and enables normal operation of
the CODEC.
Divider not 00h - generates the beep tone
on all Pin Complexes that are currently
configured as outputs. The Azalia spec
states that the beep tone 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.
00
STAC9271/9272/9273/9274 V 1.0 MARCH2007
Description
Description
See bitfield table.
0000_0000h
Response
PC AUDIO