Kontron ETXexpress-AI User Manual
Page 25
Kontron ETXexpress-AI User’s Guide
20
Pin
Signal
Description
Type
Terminati
on
Comment
B30
AC/HDA_SDIN
0
Audio CODEC Serial
Data in 0
I-3.3
B31
GND (Fixed)
Power Ground
PWR
-
-
B32
SPKR
Speaker Interface
O-3.3
B33
I2C_CK
I
2
C Clock
IO-3.3
B34
I2C_DAT
I
2
C Data
IO-3.3
B35
THRM#
Over Temperature
Indicator
I-3.3
B36
USB7-
USB Data- Port #7 (
DP-I/O
B37
USB7+
USB Data+ Port #7
DP-I/O
B38
USB_4_5_OC#
USB Overcurrent Pair
4/5
I-3.3
B39
USB5-
USB Data- Port #5
DP-I/O
B40
USB5+
USB Data+ Port #5
DP-I/O
B41
GND (Fixed)
Power Ground
PWR
-
-
B42
USB3-
USB Data- Port #3
DP-I/O
B43
USB3+
USB Data+ Port #3
DP-I/O
B44
USB_0_1_OC#
USB Overcurrent Pair
0/1
I-3.3
B45
USB1-
USB Data- Port #1
DP-I/O
B46
USB1+
USB Data+ Port #1
DP-I/O
B47
EXCD1_PERST
#
PCIe Express Card 1
Reset
O-3.3
B48
EXCD1_CPPE#
PCIe Express Card 1
Request
I-3.3
B49
SYS_RESET#
Reset button input
I-3.3
B50
CB_RESET#
Carrier Board Reset O-3.3
B51
GND (Fixed)
Power Ground
PWR
-
-
B52
PCIE_RX5+
PCIe 5 Receive Data+
DP-I
B53
PCIE_RX5-
PCIe 5 Receive Data-
DP-I
B54
GPO1
General Purpose
Output 1
O-3.3
B55
PCIE_RX4+
PCIe 4 Receive Data+
DP-I
B56
PCIE_RX4-
PCIe 4 Receive Data-
DP-I
B57
GPO2
General Purpose
Output 2
O-3.3
B58
PCIE_RX3+
PCIe 3 Receive Data+
DP-I
B59
PCIE_RX3-
PCIe 5 Receive Data-
DP-I
B60
GND (Fixed)
Power Ground
PWR
-
-
B61
PCIE_RX2+
PCIe 2 Receive Data+
DP-I
B62
PCIE_RX2-
PCIe 2 Receive Data-
DP-I
B63
GPO3
General Purpose
O-3.3