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COM Express
™
PORTWELL PCOM-B700G User's Guide
Copyright © PORTWELL 2018 PCOM-B700G User's Guide
42
other configurable devices time to
be programmed.
B25
PC
PCI Express Differential Receive
Pairs
I
PCIE
AC coupled off Module
-
-
B26
PCIE_RX14-
PCI Express Differential Receive
Pairs
I
PCIE
AC coupled off Module
-
-
B27
WDT
Output indicating that a watchdog
time-out event has occurred.
O
CMOS
3.3V / 3.3V
-
-
B28
RSVD
Reserved Pin
-
-
-
-
-
B29
RSVD
Reserved Pin
-
-
-
-
-
B30
RSVD
Reserved Pin
-
-
-
-
-
B31
GND(FIXED)
GND(FIXED)
-
-
-
-
-
B32
SPKR
Output for audio enunciator
O
CMOS
3.3V / 3.3V
-
-
B33
I2C_CK
General purpose I2C port clock
output
I/O
CMOS
3.3V Suspend / 3.3V
PU 2.2k
ohm to 3.3V
-
B34
I2C_DAT
General purpose I2C port data I/O
line
I/O
CMOS
3.3V Suspend / 3.3V
PU 2.2k
ohm to 3.3V
-
B35
THRM#
Input from off-Module temp sensor
indicating an over-temp situation
I
CMOS
3.3V / 3.3V
PU 1k ohm
to 3VSB
-
B36
PC
PCI Express Differential Receive
Pairs
I
PCIE
AC coupled off Module
-
-
B37
PCIE_RX13-
PCI Express Differential Receive
Pairs
I
PCIE
AC coupled off Module
-
-