92HD99B Datasheet, PDF (75/225 Pages) Integrated Device Technology – SINGLE CHIP PC AUDIO SYSTEM

92HD99
SINGLE CHIP PC AUDIO SYSTEM, CODEC+SPEAKER AMPLIFIER+CAPLESS HP+LDO
Field Name
BPwd
APwd
Bits
R/W
1
RW
Power down Port B.
0
RW
Power down Port A.
Default
0h
0h
Reset
POR
POR
7.4.27. AFG (NID = 01h): AnaBTL
Reg Byte 4 (Bits 31:24) Byte 3 (Bits 23:16) Byte 2 (Bits 15:8)
Set
7F6h
7F5h
Get
FF400h
Byte 1 (Bits 7:0)
7F4h
Field Name
Rsvd6
SCStableTimeSel
TSOverrideHiz
TSTestMode
TSForcePwd
TSInstantCutMode
Bits
R/W
Default
Reset
31:22
R
0h
N/A (Hard-coded)
Reserved.
21:22
RW
0h
POR
The programmed time window for short circuit detect.
This is available on WB silicon revisions and beyond. Prior silicon revi-
sions, these bits are reserved.
19
RW
0h
POR
Override Hiz for the BTL amplifier power stage circuit: set to 1 to Hiz, set back
to 0 to normal mode
18
RW
0h
POR
Temp sense test mode select, 0=normal operation, 1=sensor will trip at ambi-
ent temperature.
17
RW
1h
POR
Temp sense force powerdown select
0=BTL will not be muted and powered down even if it is still overheating when
the volume is 0h
1=BTL will be muted and powered down even if it is still overheating when the
volume is 0h
16
RW
0h
POR
Temp sense instant cut mode
0=Two trip points used to smoothly adjust the volume
1=One single trip point used to set volume to wither 0 or max value (TI mode)
IDT CONFIDENTIAL
75
©2009 INTEGRATED DEVICE TECHNOLOGY, INC.
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92HD99