Usb-Host Ports; Usb Typec Port; Audio; Bt Audio - Thundercomm Qualcomm Robotics RB5 Hardware User Manual

3.8.1 USB-Host ports

The QRB5165 processor includes two USB channels:
USB0 (section1.2.1 #5) is for USB Type C.

USB1 (through a USB HUB to section1.2.1 #1&#3) is USB host only ports.

RB5 supports below USB host ports by USB HUB mentioned above:
Two Type A USB Host 3.0 (super-speed) connector, each with current limit 1.2A.

USB 3.0 signals are also routed to high-speed expansion connector HS1&HS2.


3.8.2 USB TypeC port

RB5 implements a USB Type C port (section1.2.1#5)
This Type C port supports both device and host mode with different peripherals. The
board can work in one mode at a time.
NOTE: There is a micro USB port section1.2.2#21. This micro B USB port is used only for
debug-log-output from the QRB5165 with a debug UART to USB bridge.
3.9

Audio

The 96Boards specifications calls for a minimum of single channel audio through two
interfaces, BT and HDMI/MHL/DisplayPort.
RB5 meets this requirement with HDMI, Display Port, and other audio channels, including
support for headset jack.
Note that MHL is not supported.

3.9.1 BT Audio

The BT 5.1 implementation (including audio) on the Qualcomm® Robotics RB5
Development Kit is with QRB5165 and QCA6391.

3.9.2 HDMI Audio

A 4-bit (audio out only) I2S channel is routed directly from the QRB5165 SoC I2S interface
pins to the DSI-HDMI bridge.

3.9.3 DisplayPort Audio

The DisplayPort audio is routed directly from the QRB5165 SoC eDP interface pins to the
Type C USB connector.
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Robotics RB5 Development Kit Hardware User Manual
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