5.6 USB Connectivity (X15 and X42)
The phyBOARD-Wega provides one USB Host and one USB OTG interface.
USB0 is accessible at connector X42 (USB Micro-AB) located at the back side of the phyBOARD-
Wega. It is configured as USB OTG. USB OTG devices are capable to initiate a session, control the
connection and exchange host and peripheral roles between each other. This interface is compliant
with USB revision 2.0.
USB1 is accessible on the top at connector X15 (USB Standard-A) and is configured as USB Host.
Components supporting the USB Interfaces
LED D8 displays the status of USB0_VBUS and LED D7 the status of USB1_VBUS. For later
expansion boards the USB1 interface can be routed to the expansion connector (X69) by populating J72
and J73 (2+3).
5.7 Audio Interface (X55 andX73)
The audio interface provides a method of exploring AM335x’s audio capabilities. The phyBOARD-
Wega is populated with an audio codec at U35. The audio codec is connected to the AM335x’s
McASP0 interface to support stereo line input and stereo line output at connector X73. In addition to
that the phyBOARD-Wega has one direct mono speaker output (2 × 1 W) at the Molex connector X55.
X55: Speaker
Audio Interfaces at Connectors X55 and X73 X73:LINE IN LINEOUT
© PHYTEC Embedded Pvt. Ltd. 2014 18
