92hd87b4x5ndg Integrated Device Technology, 92hd87b4x5ndg Datasheet - Page 70

• Manufacturer Part Number: 92hd87b4x5ndg
• Description: Single Chip Pc Audio System Codec+stereo Speaker Amplifier+capless Hp+ldo
• Manufacturer: Integrated Device Technology

IDT PROPRIETARY / IDT
SINGLE CHIP PC AUDIO SYSTEM, CODEC+SPEAKER AMPLIFIER+CAPLESS HP+LDO
92HD87
SINGLE CHIP PC AUDIO SYSTEM, CODEC+SPEAKER AMPLIFIER+CAPLESS HP+LDO
Field Name
HPASD
Rsvd2
BTLSDInv
BTLSDMode
BTLSD
Rsvd1
PinMode
Reg
Get
Set
8.3.24. AFG (NID = 01h): PortUse
Byte 4 (Bits 31:24)
CONFIDENTIAL
Bits
8
HP Amp Shutdown Control Select:
0 = Amp controlled by EAPD pin only
1 = Amp controlled by power state only
7
Reserved.
6
BTL Amp Shutdown Invert:
1 = Amp will power down (or mute) when EAPD pin is high
5
BTL Amp Shutdown Mode:
1 = Amp will enter a low power state when disabled
4
BTL Amp Shutdown Control Select:
0 = Amp controlled by EAPD pin only
1 = Amp controlled by power state only
3:2
Reserved.
1:0
EAPD Pin Mode:
nal)
01b = CMOS Output (Value of EAPD bit is forced at pin)
1xb = CMOS Input (External signal controls internal amps, EAPD bit ignored)
0 = Amp will power down (or mute) when EAPD pin is low
0 = Amp will mute when disabled
00b = Open Drain I/O (Value at pin is wired-AND of EAPD bit and external sig-
Byte 3 (Bits 23:16)
R/W
RW
R
RW
RW
RW
R
RW
FC000h
Default
0h
0h
0h
1h
0h
0h
0h
70
Byte 2 (Bits 15:8)
Reset
POR
N/A (Hard-coded)
POR
POR
POR
N/A (Hard-coded)
POR
92HD87
Byte 1 (Bits 7:0)
7C0h
PC AUDIO
V 0.95 10/10