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ID chip with example content.
Data Field
Manufacturer
Product Name
Product Revision
Product Serial Number
Min. Voltage [mV]
Max. Voltage [mV]
Max. Current [mA]
3.3
Power Supply
3.3.1
Power Source Selection
The SAMDA1 Xplained Pro kit can be powered by: (1) USB, (2) an external power 5V or 3.3 VCC source through the 4-
pin power header, marked PWR or by (3) a LIN 12VDC input connected to HV header VS_LIN pin. The 4-pin connector
is described in
"Xplained Pro Power Header" on page
The available power sources and specifications are listed in
page
7.
Option
Option1
Option 2A
Option 2B
Option 3
The kit will automatically detect which power sources are available and make a selection automatically based on the
following criteria:
Table 3-2, "Xplained Pro ID Chip Content" on page 7
Table 3-2.
Data Type
ASCII string
ASCII string
ASCII string
ASCII string
uint16_t
uint16_t
uint16_t
Table 3-3.
Power input
External Power 1 (PWR 4-
pin connector)
Embedded debugger USB
Target USB
External Power 2 (HV 20-
pin connector)
Xplained Pro ID Chip Content
Example Content
Atmel'\0'
Segment LCD1 Xplained Pro'\0'
02'\0'
1774020200000010'\0'
3000
3600
30
10.
Table 3-3, "Power Sources for SAMDA1 Xplained Pro" on
Power Sources for
SAMDA1 Xplained Pro
Voltage Req.
5V ± 2 % (± 100mV) for
USB host operation.
4.3V to 5.5V if USB host
operation is not required
4.4V to 5.25V (according
to USB spec)
4.4V to 5.25V (according
to USB spec)
8-16VDC VREG (HV)
regulator drops it to
5VDC and then VREG
(5V) drops it to 3.3VDC
to power EDBG and
SAMDA1A device.
Atmel SAMDA1 Xplained Pro [USERGUIDE]
shows the data fields stored in the
Current Req.
Connector Marking
Recommended
PWR
minimum is 1A to
be able to provide
enough current for
connected USB
devices and the board
itself. Recommended
maximum is 2A due
to the input protection
maximum current
specification.
500mA (according to
DEBUG USB
USB spec)
500mA (according to
TARGET USB
USB spec)
800mA max 12VDC
HV
power source
7
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