92HD99B Datasheet, PDF (203/225 Pages) Integrated Device Technology – SINGLE CHIP PC AUDIO SYSTEM

92HD99
SINGLE CHIP PC AUDIO SYSTEM, CODEC+SPEAKER AMPLIFIER+CAPLESS HP+LDO
Field Name
Set
Bits
R/W
Default
Reset
1:0
RW
0h
POR - DAFG - LR
Current power state setting for this widget.
7.28.4. DigBeep (NID = 21h): Gen
Reg Byte 4 (Bits 31:24) Byte 3 (Bits 23:16) Byte 2 (Bits 15:8)
Set
Get
F0A00h
Byte 1 (Bits 7:0)
70Ah
Field Name
Rsvd
Divider
Bits
R/W
Default
Reset
31:8
R
000000h
N/A (Hard-coded)
Reserved.
7:0
RW
00h
POR - DAFG - LR
Enable internal PC-Beep generation. Divider == 00h disables internal PC Beep
generation and enables normal operation of the codec. Divider != 00h gener-
ates the beep tone on all Pin Complexes that are currently configured as out-
puts. The HD Audio spec states that the beep tone frequency = (48kHz HD
Audio SYNC rate) / (4*Divider), producing tones from 47 Hz to 12 kHz (logarith-
mic scale).
7.28.5. DigBeep (NID = 21h): Gain
Reg Byte 4 (Bits 31:24) Byte 3 (Bits 23:16) Byte 2 (Bits 15:8)
Set
Get
F7A00h
Byte 1 (Bits 7:0)
77Ah
Field Name
Rsvd
Divider
Bits
R/W
Default
Reset
31:3
R
000000h
N/A (Hard-coded)
Reserved.
2:0
RW
05h
POR - DAFG - LR
Digital PC Beep Gain adjust in digital side 0h = -9dB, 1h = -6dB, 2h = -3dB, 3h
= 0dB, 4h = +3db, 5h = +6db
IDT CONFIDENTIAL
203
©2009 INTEGRATED DEVICE TECHNOLOGY, INC.
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92HD99