ADM-PA101 User Manual
3.10 ULPI USB Interface
The MIO ULPI USB interface is instantiated. See
Part number USB3320C-EZK is used for PHY electrical conversion. This PHY is capable of USB 2.0
communication speeds. An onboard supply provides 5V @ 500mA on the VBUS pin of the USB receptacle. The
location of the USB PHY is located along the back edge of the card.
Figure 12 : ULPI USB Location
3.11 UART interfaces
UART0 and UART1 interfaces are available. See
Both of these UART interfaces are brought out through the onboard USB hub which can be accessed at either
the front or the back edge of the card.
UART0 passes through an FT2232HQ USB to UART converter. This is the same IC that performs the USB to
JTAG conversion. This UART interface will not appear in the system until after the board is fully powered and is
not suitable to capture power-on messages from the processor.
UART1 passes through an FT230XQ USB to UART converter. This device is powered from the USB VBUS
supply provided by the USB cable. This UART interface will appear in the host system as soon as the USB cable
is installed, even before the ADM-PA101 is powered up. This interface is suitable to capture power-on messages
from the processor.
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Functional Description
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