92HD87 Datasheet, PDF (179/204 Pages) Integrated Device Technology – SINGLE CHIP PC AUDIO SYSTEM

92HD87
SINGLE CHIP PC AUDIO SYSTEM, CODEC+STEREO SPEAKER AMPLIFIER+CAPLESS HP+LDO
Field Name
AmpParOvrd
OutAmpPrsnt
InAmpPrsnt
Stereo
Bits
R/W
Default
Reset
3
R
1h
N/A (Hard-coded)
Amplifier capabilities override: 1 = yes, no.
2
R
0h
N/A (Hard-coded)
Output amp present: 1 = yes, 0 = no.
1
R
1h
N/A (Hard-coded)
Input amp present: 1 = yes, 0 = no.
0
R
1h
N/A (Hard-coded)
Stereo stream support: 1 = yes (stereo), 0 = no (mono).
8.22.1. Mixer (NID = 1Bh): InAmpCap
Reg Byte 4 (Bits 31:24) Byte 3 (Bits 23:16) Byte 2 (Bits 15:8)
Set
Get
F000Dh
Byte 1 (Bits 7:0)
Field Name
Mute
Rsvd3
StepSize
Rsvd2
NumSteps
Rsvd1
Bits
R/W
Default
Reset
31
R
1h
N/A (Hard-coded)
Mute support: 1 = yes, 0 = no.
30:23
R
00h
N/A (Hard-coded)
Reserved.
22:16
R
05h
N/A (Hard-coded)
Size of each step in the gain range: 0 to 127 = .25dB to 32dB, in .25dB steps.
15
R
0h
N/A (Hard-coded)
Reserved.
14:8
R
1Fh
N/A (Hard-coded)
Number of gains steps (number of possible settings - 1).
7
R
0h
N/A (Hard-coded)
Reserved.
IDT CONFIDENTIAL
179
©2009 INTEGRATED DEVICE TECHNOLOGY, INC.
V 0.995 01/11
92HD87