92HD81 Datasheet, PDF (268/279 Pages) Integrated Device Technology – SINGLE CHIP PC AUDIO SYSTEM

92HD81
SINGLE CHIP PC AUDIO SYSTEM, CODEC+SPEAKER AMPLIFIER+CAPLESS HP+LDO
Field Name
Rsvd2
NumSteps
Rsvd1
Offset
Bits
R/W
Default
Reset
15
R
0h
N/A (Hard-coded)
Reserved.
14:8
R
03h
N/A (Hard-coded)
Number of gains steps (number of possible settings - 1).
7
R
0h
N/A (Hard-coded)
Reserved.
6:0
R
03h
N/A (Hard-coded)
Indicates which step is 0dB
7.29.2. DigBeep (NID = 21h): OutAmpLeft
Reg Byte 4 (Bits 31:24) Byte 3 (Bits 23:16) Byte 2 (Bits 15:8)
Set
Get
BA000h
Byte 1 (Bits 7:0)
3A0h
Field Name
Rsvd2
Mute
Rsvd1
Gain
Bits
R/W
Default
Reset
31:8
R
000000h
N/A (Hard-coded)
Reserved.
7
RW
0h
POR - DAFG - ULR
Amp mute: 1 = muted, 0 = not muted.
6:2
R
00h
N/A (Hard-coded)
Reserved.
1:0
RW
1h
POR - DAFG - ULR
Amp gain step number (see OutAmpCap parameter pertaining to this widget).
7.29.3. DigBeep (NID = 21h): PwrState
Reg Byte 4 (Bits 31:24) Byte 3 (Bits 23:16) Byte 2 (Bits 15:8)
Set
Get
F0500h
Byte 1 (Bits 7:0)
705h
IDT CONFIDENTIAL
268
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V 0.995 01/11
92HD81