Phytec phyCORE-i.MX35, Hardware Manual

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phyCORE-i.MX35
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PHYTEC Messtechnik GmbH 2010 L-734e_1
9 USB
The i.MX35x microcontroller has one USB 2.0 Host interface and one USB 2.0 OTG interface
both with integrated USB-Phys.
9.1 USB-OTG
With the phyCORE-i.MX35 USB-OTG is realized with the internal high-speed USB-OTG-Phy of
the i.MX35x. This Phy supports data rates up to 480Mbps. An external USB Standard-A (for
USB host), USB Standard-B (for USB device), or USB mini-AB (for USB OTG) connector and a
5 V VBUS power supply is all that is needed to interface the phyCORE-i.MX35 USB OTG
functionality. The applicable interface signals (D+/D-/VBUS/ID) can be found in the
phyCORE-connector pin-out
Table 1.
Also the whole USB-OTG interface is connected to the phyCORE-connector so that there is the
possibility to use different USB-Phys.
9.2 USB-Host
With the phycore-i.MX35 USB-Host is realized with the internal full-speed USB-Host-Phy of the
i.MX35x microcontroller. This Phy supports data rates up to 12Mbps. An external USB
Standard-A (for USB host), USB Standard-B (for USB device), or USB mini-AB (for USB OTG)
connector is all that is needed to interface the phyCORE-i.MX35 USB Host functionality. The
applicable interface signals (D+/D-) can be found in the phyCORE-connector pin-out
Table 1.