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5.3.2.4
Surround header
The surround signals of the Realtek ALC888S HDA audio codec are routed to the internal surround connector.
Table 21 Surround (Connector X26) Pinout Description
Pin Signal
Description
Pin Signal
Description
1
LINE1_L
1st Analog line input left channel
2
A_GND
Analog ground
3
A_GND
Analog ground
4
LINE1_R
1st Analog line input right channel
5
SIDE_L
Analog side output left channel
6
A_GND
Analog ground
7
A_GND
Analog ground
8
SIDE_R
Analog side out right channel
9
SURR_L
Analog surround out left channel
10
A_GND
Analog ground
11
A_GND
Analog ground
12
SURR_R
Analog surround out right channel
13
CENTER
Analog center output
14
A_GND
Analog ground
15
A_GND
Analog ground
16
LFE
Analog low frequency output
17
-
No pin
18
SENSE
Jack detection for HDA codec
Connector Type
X26: 2 mm, 2x9-pin header
5.4
Communication Bus
The conga-IC175 supports both SMBus and I2C compliant devices.
5.4.1
SMBus
The SMBus signals are available in different locations on the conga-IC175, including the feature connector (X38) described in section 6.13.
5.4.2
SPI Bus
The SPI signals are connected to the onboard SPI flash and the feature connector (X38). With the SPI signals on the feature connector, you can
start the conga-IC175 from an external flash. This however requires a customized adapter to trigger the BIOS_DISABLE# signal (pin 46) of the
feature connector.
Note
The congatec customized adapter for the feature connector is for internal use only.
Surround - Connector X26
Pin 1
Pin 18
No Pin
