Atmel ATSAM3N-EK Hoja De Datos
Evaluation Kit Hardware
4-12
SAM3N-EK Development Board User Guide
11080C–ATARM–30-Mar-11
4.4.2
Jumpers
The SAM3N-EK board jumpers are used for many purposes such as internal Flash Memory reinitializa-
tion, power current measurement and other configurations.
tion, power current measurement and other configurations.
4.4.3
Test Points
Some test points have been placed on the SAM3N-EK board for the verification of important signals.
PC24
TIOB3
ZB_IRQ0
ZigBee
PC25
TCLK3
ZB_IRQ1
ZigBee
PC26
TIOA4
ZB_SLPTR
ZigBee
PC27
TIOB4
PC28
TCLK4
PC29
TIOA5
AD13
PC30
TIOB5
AD14
PC31
TCLK5
AD15
Table 4-3. PIO Port C Assignment (Continued)
I/O Line
Peripheral A
Peripheral B
Peripheral C
Extra Function
EK Usage
Device
Table 4-4. Jumpers
Designation
Label
Default
Setting
Setting
Feature
JP1
JTAGSEL
OPEN
Close it to reinitialize the Flash content and some
of its NVM bits.
of its NVM bits.
This jumper must be closed for more than 220 ms
at power-up to perform the reinitialization.
at power-up to perform the reinitialization.
JP2
ADVREF
CLOSE
Analog reference voltage selection, access for
external reference voltage
external reference voltage
JP3
PB12
OPEN
ERASE, Close to reinitialize the Flash contents and
some of its NVM bits
some of its NVM bits
JP4
VDDIO
CLOSE
Access for current measurement on VDDIO
JP5
VDDIN
CLOSE
Access for current measurement on VDDIN
JP6
VDDPLL
CLOSE
Access for current measurement on VDDPLL
JP7
VDDCORE
CLOSE
Access for current measurement on VDDCORE
JP8
+3V3
1-2
DC voltage selection between 3.3V and 5V on PIO
expansion ports, default for 3.3V
expansion ports, default for 3.3V
JP9
+3V3
1-2
DC voltage selection between 3.3V and 5V on PIO
expansion ports, default for 3.3V
expansion ports, default for 3.3V
Table 4-5. Test Points
Designation
Part
Description
TP1
Ring Hook
+5V
TP2
Ring Hook
+3V3
TP3
Ring Hook
GND
TP4
Ring Hook
GND