stac9220d5taea6xr Integrated Device Technology, stac9220d5taea6xr Datasheet - Page 40

• Manufacturer Part Number: stac9220d5taea6xr
• Description: Eight Channel High Definition Audio Codecs
• Manufacturer: Integrated Device Technology

IDT™
8-CHANNEL HIGH DEFINITION AUDIO CODEC
STAC9220
8-CHANNEL HIGH DEFINITION AUDIO CODEC
[31:4]
Bit
3
2
Bitfield Name
Rsvd
GP3
GP2
Table 31. AFG GPIO Polarity Command Response Format
RW
RW
RW
R
Reset
0x0
0x1
0x1
Reserved
GPIO 3 Input Polarity Control (used in conjunction with GPIOSticky)
and Output Type Control.
When configured as a level-sensitive input:
0 = inverted
1 = not inverted (default)
When configured as an edge-sensitive input:
0 = falling-edge triggered
1 = rising-edge triggered
When configured as an output:
0 = push-pull (CMOS)
1 = open drain (default)
GPIO 2 Input Polarity Control (used in conjunction with GPIOSticky)
and Output Type Control.
When configured as a level-sensitive input:
0 = inverted
1 = not inverted (default)
When configured as an edge-sensitive input:
0 = falling-edge triggered
1 = rising-edge triggered
When configured as an output:
0 = push-pull (CMOS)
1 = open drain (default)
40
Description
STAC9220
PC AUDIO
V1.0 01/08