SAMA5D3 Xplained [USER GUIDE]
Atmel-11269D-ATARM-SAMA5D3-Xplained-XPLD-User Guide_07-Sep-15
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4.3
Other Connector Details and PIO Usage Summary
4.3.1
Power Supply
Figure 4-28.
Power Supply Connector J2 (Optional)
4.3.2
JTAG/ICE Connector
Figure 4-29.
JTAG port J24
Table 4-15.
Power Supply Connector J2 Signal Description
Pin
Mnemonic
Signal Description
1
Center
+5V
2
--
GND
3
--
Floating
1 3 5 7 9 11 13 15 17 19
2 4 6 8 10 12 14 16 18 20
Table 4-16.
JTAG/ICE Connector J24 Signal Descriptions
Pin
Mnemonic
Signal Description
1
VT
ref
3.3V power
This is the target reference voltage. It is used to check if the target has
power, to create the logic-level reference for the input comparators, and
to control the output logic levels to the target. It is normally fed from VDD
on the target board and must not have a series resistor.
2
V
supply
3.3V power
This pin is not connected in SAM-ICE
™
. It is reserved for compatibility
with other equipment. Connect to VDD or leave open in target system.
3
nTRST Target Reset - Active-low
output signal that resets the target.
JTAG Reset. Output from SAM-ICE to the reset signal on the target
JTAG port. Typically connected to nTRST on the target CPU. This pin is
normally pulled High on the target to avoid unintentional resets when
there is no connection.
4
GND
Common ground.
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