cExpress-TL User’s Guide
PICMG COM.0 R3.0
Page 35
Copyright © 2021 ADLINK Technology, Inc.
4.3.8
USB
Name
Pin #
Description
I/O
PU / PD
Comment
USB0+
USB0-
A46
A45
USB differential data pairs for Port 0
I/O 3.3VSB
USB 1.1/ 2.0 compliant
USB1+
USB1-
B46
B45
USB differential data pairs for Port 1
I/O 3.3VSB
USB 1.1/ 2.0 compliant
USB2+
USB2-
A43
A42
USB differential data pairs for Port 1
I/O 3.3VSB
USB 1.1/ 2.0 compliant
USB3+
USB3-
B43
B42
USB differential data pairs for Port 2
I/O 3.3VSB
USB 1.1/ 2.0 compliant
USB4+
USB4-
A40
A39
USB differential data pairs for Port 3
I/O 3.3VSB
USB 1.1/ 2.0 compliant
USB5+
USB5-
B40
B39
USB differential data pairs for Port 4
I/O 3.3VSB
USB 1.1/ 2.0 compliant
USB6+
USB6-
A37
A36
USB differential data pairs for Port 5
I/O 3.3VSB
USB 1.1/ 2.0 compliant
USB7+
USB7-
B37
B37
USB differential data pairs for Port 6
I/O 3.3VSB
USB 1.1/ 2.0 compliant
USB_0_1_OC#
B44
USB over-current sense, USB ports 0 and 1 (see *Note)
I 3.3VSB
PU 10K 3.3VSB
Do not pull high on carrier
USB_2_3_OC#
A44
USB over-current sense, USB ports 2 and 3 (see *Note)
I 3.3VSB
PU 10K 3.3VSB
Do not pull high on carrier
USB_4_5_OC#
B38
USB over-current sense, USB ports 4 and 5 (see *Note)
I 3.3VSB
PU 10K 3.3VSB
Do not pull high on carrier
USB_6_7_OC#
A38
USB over-current sense, USB ports 6 and 7 (see *Note)
I 3.3VSB
PU 10K 3.3VSB
Do not pull high on carrier
USB0_HOST_PRSNT B48
Module USB client may detect the presence of a USB
host on USB0. A high value indicates that a host is
present.
I 3.3VSB
Not supported
*Note
: A pull-up for this line shall be present on the module. An open drain driver from a USB current monitor on the carrier board may drive this
line low.