92hd87b4x5ndg Integrated Device Technology, 92hd87b4x5ndg Datasheet - Page 72

• 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
Rsvd
D5
D4
Field Name
Rsvd2
MonoPwd
FPwd
EPwd
Reg
Get
Set
8.3.26. AFG (NID = 01h): AnaPort
Byte 4 (Bits 31:24)
CONFIDENTIAL
Bits
31:2
Reserved.
1
Vendor specific D5 power state, only entered once the part is already in D3cold
(this bit must be set before the command to enter D3cold). If set, this bit over-
rides the D4 bit (bit 0). Includes the power savings of D4, but additionally pow-
ers down GPIO pins, the VAG amp, and the HP amps. Exits this power state
via POR or rising edge of Link Reset.
0
Vendor specific D4 power state, only entered once the part is already in D3cold
(this bit must be set before the command to enter D3cold). If the D5 bit (bit 1)
is set, this bit is overridden. Includes the power savings of D3cold, but addi-
tionally powers down the HDA interface (no responses). Exit this power state
via POR or rising edge of Link Reset.
Bits
31:7
Reserved.
6
Power down Mono Output.
5
Power down Port F.
4
Power down Port E.
Byte 3 (Bits 23:16)
R/W
R
RW
RW
R/W
R
RW
RW
RW
FEC00h
Default
00000000h
0h
0h
Default
0000000h
0h
0h
0h
72
Byte 2 (Bits 15:8)
7EDh
Reset
N/A (Hard-coded)
POR - ELR
POR - ELR
Reset
N/A (Hard-coded)
POR - S&DAFG - ULR
POR - S&DAFG - ULR
POR - S&DAFG - ULR
92HD87
Byte 1 (Bits 7:0)
7ECh
PC AUDIO
V 0.95 10/10