• 07/14/2017
  • Public Content
Contents

USB3 OTG Host Connectivity

If higher transfer rates are needed, use the USB host functionality through the USB3 port 1. A Type-A receptacle (female USB connector) is, in this case, used to carry the signals from USB3 port 1 and USB2 port 1. Because this setup is not supporting firmware updates, a separate USB2 device connector (see USB2 Device Connectivity ) is needed.
 
The USB3 OTG connector can provide +VBUS to attached devices by generating a 5 V supply on the Intel® Joule™ expansion board from +VSYS or a 5 V supply.
Place a load switch, enabled by +VDD3, between the 5 V supply and USB +VBUS, with a set 1 A current limit. If +VSYS is fixed at 5 V, a boost regulator is not needed and a load switch is sufficient. It is good design practice to add ESD protection diodes, a PTC fuse, and an EMI filter to +VBUS, and to add common-mode chokes that have built-in ESD diodes to USB data signals.
Note:
The series capacitors required for the TX lines for USB 3.0 signals are already designed into the Intel® Joule™ module itself.
 

Product and Performance Information

1

Intel's compilers may or may not optimize to the same degree for non-Intel microprocessors for optimizations that are not unique to Intel microprocessors. These optimizations include SSE2, SSE3, and SSSE3 instruction sets and other optimizations. Intel does not guarantee the availability, functionality, or effectiveness of any optimization on microprocessors not manufactured by Intel. Microprocessor-dependent optimizations in this product are intended for use with Intel microprocessors. Certain optimizations not specific to Intel microarchitecture are reserved for Intel microprocessors. Please refer to the applicable product User and Reference Guides for more information regarding the specific instruction sets covered by this notice.

Notice revision #20110804