STAC9228 Integrated Device Technology, STAC9228 Datasheet - Page 53

• Manufacturer Part Number: STAC9228
• Description: Theater Quality Eight Channel High Definition Audio Codec With Digital Microphone Interface
• Manufacturer: Integrated Device Technology

IDT™
STAC9227/9228/9229/9230
8-CHANNEL HIGH DEFINITION AUDIO CODEC
8-CHANNEL HIGH DEFINITION AUDIO CODEC
[31:5]
Bit
[4]
[3]
[2]
Bitfield Name
Rsvd
GP4
GP3
GP2
Table 58. AFG GPIOPlrty
IDT CONFIDENTIAL
RW
RW
RW
RW
53
R
Reset
Command Response Format
0x0
0x1
0x1
0x1
Reserved
GPIO4 Polarity;
If configured as an output:
0 = inverting,
1 = non-inverting;
If configured as a non-sticky input:
0 = inverting,
1 = non-inverting;
If configured as a sticky input:
0 = falling events will be detected,
1 = rising events will be detected.
GPIO3 Polarity;
If configured as an output:
0 = inverting,
1 = non-inverting;
If configured as a non-sticky input:
0 = inverting,
1 = non-inverting;
If configured as a sticky input:
0 = falling events will be detected,
1 = rising events will be detected.
GPIO2 Polarity;
If configured as an output:
0 = inverting,
1 = non-inverting;
If configured as a non-sticky input:
0 = inverting,
1 = non-inverting;
If configured as a sticky input:
0 = falling events will be detected,
1 = rising events will be detected.
STAC9227/9228/9229/9230V 1.0 MARCH 2007
Description
PC AUDIO