
COM Express
™
PORTWELL PCOM-B700G User's Guide
Copyright © PORTWELL 2018 PCOM-B700G User's Guide
51
C12
USB_SSRX3-
Additional transmit signal
differential pairs for the
SuperSpeed USB data path.
I
PCIE
AC coupled off Module
-
-
C13
US
Additional transmit signal
differential pairs for the
SuperSpeed USB data path.
I
PCIE
AC coupled off Module
-
-
C14
GND
GND
-
-
-
-
-
C15 10G_PHY_MDC_SCL3
MDIO Mode: Management Data
I/O interface mode clock signal for
serial data transfers between the
MAC and an external PHY.
O
-
3.3V Suspend / 3.3V
-
-
I2C Mode: I2C clock signal, of the
2-wire management interface used
for serial data transfers between
the MAC and an external PHY.
I/O OD
-
3.3V Suspend / 3.3V
-
-
C16 10G_PHY_MDC_SCL2
MDIO Mode: Management Data
I/O interface mode clock signal for
serial data transfers between the
MAC and an external PHY.
O
-
3.3V Suspend / 3.3V
-
-
I2C Mode: I2C clock signal, of the
2-wire management interface used
for serial data transfers between
the MAC and an external PHY.
I/O OD
-
3.3V Suspend / 3.3V
-
-
C17
10G_SDP2
Software-Definable Pins. Can also
be used for IEEE1588 support
such as a 1pps signal
I/O
-
3.3V Suspend / 3.3V
-
-
C18
GND
GND
-
-
-
-
-