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4.3 J7 / J8 USB host
All USB ports follow the USB 2.0 specification.
With a Hub, the single USB-Port of the efus module is expanded to four USB Ports (A - D).
Port A & B are connected to the USB Host front connector. USB Port C is connected to a 4
pin header. USB Port D is connected to the mPCIE connector.
The 90 Ohm differential pair of USB signals doesn’t need any termination. For external ports,
EMV protection is required nearby the USB connector.
The usb.org webpage provides “High Speed USB Platform Design Guidelines“ with highly
recommended information for a proper working USB design.
If a USB port is not used, please leave it open.
Figure 5: USB Host with USB Hub
Summary of Contents for efus-SINTF
Page 1: ...Hardware documentation for efus Startinterface Version 1 0 2014 03 10 efus SINTF ...
Page 4: ...4 ...
Page 6: ...6 2 Mechanical dimension Figure 1 mechanical dimension ...
Page 8: ...8 3 Connector layout Figure 3 Connector Layout Bottom Figure 2 Connector Layout Top ...
Page 29: ...29 GND 49 50 GND 3V3 51 52 5V GND 53 54 GND CAN_B_H 55 56 CAN_B_L EXT_PROG 57 58 GND ...
