92hd81 Integrated Device Technology, 92hd81 Datasheet - Page 72

• Manufacturer Part Number: 92hd81
• Description: Single Chip Pc Audio System
• Manufacturer: Integrated Device Technology

SINGLE CHIP PC AUDIO SYSTEM, CODEC+SPEAKER AMPLIFIER+CAPLESS HP+LDO
92HD81
SINGLE CHIP PC AUDIO SYSTEM, CODEC+SPEAKER AMPLIFIER+CAPLESS HP+LDO
Field Name
GP1
GP0
Field Name
Rsvd
OD2
OD1
Reg
Get
Set
7.4.19. AFG (NID = 01h): GPIODrive
Byte 4 (Bits 31:24)
Bits
1
GPIO1 Polarity:
If configured as output or non-sticky input:
0 = inverting
1 = non-inverting
If configured as sticky input:
0 = falling edges will be detected
1 = rising edges will be detected
0
GPIO0 Polarity:
If configured as output or non-sticky input:
0 = inverting
1 = non-inverting
If configured as sticky input:
0 = falling edges will be detected
1 = rising edges will be detected
Bits
31:3
Reserved.
2
GPIO2 Drive Mode: 0 = push-pull (drive 0 and 1); 1 = open drain (drive 0, float
for 1).
1
GPIO1 Drive Mode: 0 = push-pull (drive 0 and 1); 1 = open drain (drive 0, float
for 1).
Byte 3 (Bits 23:16)
R/W
RW
RW
R/W
R
RW
RW
F7100h
Default
1h
1h
Default
00000000h
0h
0h
72
Byte 2 (Bits 15:8)
Reset
POR - DAFG - ULR
POR - DAFG - ULR
Reset
N/A (Hard-coded)
POR - DAFG - ULR
POR - DAFG - ULR
92HD81
Byte 1 (Bits 7:0)
771h
PC AUDIO
V 0.97 01/09