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iWave Systems Technologies Pvt. Ltd.
Zynq-7000 SoC SODIMM Development Platform Hardware User Guide
2.5.2
USB 2.0 OTG Port
The Zynq-7000 SoC SODIMM carrier Board supports USB2.0 High Speed OTG interface through USB OTG Controller
of Zynq-7000 SoC PS. The Transceiver output signals from SODIMM Edge connector is directly connected to USB2.0
MicroAB connector. This port can be used as USB OTG functionality which supports USB host and USB device based
on USB ID pin status.
The VBUS power of this USB2.0 connector is connected through current limit power switch which can be used to
switch On/Off the power based on the device or Host and also limits the current above 500mA in host mode. The
transceiver detects the USB functionality through USB ID pin and controls the power using the USB_PWR_EN pin
(78th pin) of SODIMM Connector. In Host mode, USB_PWR_EN should drive high to enable the power to the
connector and in device mode, USB_PWR_EN should drive low to disable the power to the connector. This USB2.0
OTG connector (J4) is physically located at the top of the board as shown below.
Figure 5: USB OTG Connector
