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USB ports
The HC78 Carrier board offers the possibility of using all the possible USB ports that are foreseen for COM HPC Client modules.
USB 2.0 ports #4#5#6#7 Quad Type-A socket - CN20
Pin
Signal
1
+5V
USB4
2
USB4-
3
USB4+
4
GND
9
+5V
USB6
10
USB6-
11
USB6+
12
GND
USB Overcurrent header
CN55
Pin
Signal
Pin
Signal
1
GND
2
USB_0_1_OC#
3
GND
4
USB_2_3_OC#
5
GND
6
USB_4_5_OC#
7
GND
8
USB_6_7_OC#
Two dedicated headers (CN79 and CN80) allow the programming of the two Power Delivery controllers mounted on the carrier board, each one associated to USB
4.0 / 3.2 Gen2x2 ports 0/1 or 2/3. These headers are not documented since they are reserved for manufacturing purpose.
Other than the USB 4 / 3.2 Gen2x2 ports available through the standard connectors CN75, CN76, CN77 and CN78,
The four USB 4.0 / USB 3.2 Gen2x2 ports are all of them available on standard USB 4.0 Type-C sockets, CN75, CN76, CN77 and CN78, p/n Amphenol
GSB4D313302Y1HR, all of them supporting Power Delivery functionality.
CCHPC-C78-C
CCHPC-C78-C - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: S.O. - Reviewed by E.S. Copyright © 2023 SECO S.p.A.
Pin
Signal
5
+5V
USB5
6
USB5-
7
USB5+
8
GND
13
+5V
USB7
14
USB7-
15
USB7+
16
GND
For debugging purposes, onboard it is also available an 8-pin connector CN63, type Adimpex p/n
LE008208-R or equivalent, for testing of the overcurrent USB_x_y_OC# signals.
Four USB 2.0 ports (#4, #5, #6 and #7) coming out from COM HPC
module can be used for the connection of external devices.
These four USB 2.0 ports are available on a standard quad Type-A
receptacle socket.
The USB Port #7, however, is shared with the BMC connector CN58 (see
par. 3.3.19).
For this reason, a dedicated 3-way jumpers allow the redirection of the
above mentioned USB port, according to the table below.
JP26 position
USB port #7 connected to
1-2
BMC Connector CN58
2-3
Quad Type-A connector
®
57
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