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xCORE XA Module Board Hardware Manual
2.1.1 Default Jumper Settings
Power up : Jumpers J8 and J12 should be connected to "xCORE DEF ON" to have
the xCORE power default to on.
Boot mode: Jumpers J14 and J16 should be connected to "MSEL" for initial xCORE
debugging.
D13 Routing: There is another jumper J15 that selects on board LED or GPIO
(X0D13) in one of the I/O header. It should be connected in "LED" position.
2.2 Power Supply
Power input can be fed either via a USB micro B connector (J3), or to pin 2 any
of the I/O headers. The 5V input supply is used to generate the 3.3V and 1.0V
supplies required by the xCORE-XA device.
The 5V and 3.3V supplies are connected to the I/O headers, and can be supplied to
or by the Module Board. The on board 3.3V supply is capable of supplying 1.25A
to external circuits connected to the I/O headers, as long as a suitable 5V adapter
is used to provide the system power.
2.2.1 xCORE Power Control
The xCORE power is controlled by two jumpers(J8,J9). The jumpers selects xCORE
power default to on (XCORE DEF ON) or off. It is also controlled by ARM via GPIO's
PD2 and PD10 to powering it down during low energy mode applications.
2.2.2 Power Supply Monitoring
The xCORE-XA power supply can be monitored via low power mode and sleep
mode etc. Four ADC signals including two shunt signals with 100:1 gain are used
for power monitoring.
2.3 Debug
Debug of the system is via the micro USB connector J2, on the bottom side of the
Module Board. This should be connected to a host computer for debugging and
programming.
2.3.1 Debug LEDs
The LEDs indicate the status of the device as shown in the below table.
XM006580A
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