Front Panel Audio Header For Intel Hd Audio; Front Panel Audio Header For Ac '97 Audio - Intel BOXDX79SR Specification

Intel Desktop Board DX79SR Technical Product Specification
2.2.2.1 Signal Tables for the Connectors and Headers
Table 12. Front Panel Audio Header for Intel HD Audio
Pin Signal Name
1 PORT_1L
2 GND
3 PORT_1R
4 PRESENCE#
5 PORT_2R
6 SENSE1_RETURN
7 SENSE_SEND
8 KEY
9 PORT_2L
10 SENSE2_RETURN
Table 13. Front Panel Audio Header for AC '97 Audio
Pin Signal Name
1 MIC
2 AUD_GND
3 MIC_BIAS
4 PRESENCE#
5 FP_OUT_R
6 AUD_GND
7 RESERVED
8 KEY
9 FP_OUT_L
10 AUD_GND
50
Description
Analog Port 1 – left channel (microphone)
Ground
Analog Port 1 – right channel (microphone)
Active low signal that signals BIOS that an Intel HD Audio
dongle is connected to the analog header. PRESENCE#=0
when an Intel HD Audio dongle is connected
Analog Port 2 – right channel (headphone)
Jack detection return for front panel (JACK1)
Jack detection sense line from the Intel HD Audio CODEC
jack detection resistor network
No pin
Analog Port 2 – left channel (headphone)
Jack detection return for front panel (JACK2)
Description
Front panel microphone input signal (biased when supporting
stereo microphone)
Ground used by analog audio circuits
Microphone power/additional MIC input for stereo
microphone support
Active low signal that signals BIOS that an Intel HD Audio
dongle is connected to the analog header. PRESENCE#=0
when an Intel HD Audio dongle is connected.
Right channel audio signal to front panel (headphone drive
capable)
Ground used by analog audio circuits
Reserved
No pin
Left channel audio signal to front panel (headphone drive
capable)
Ground used by analog audio circuits