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