Jumpers; Test Points - Atmel SAM3N-EK User Manual

Evaluation Kit Hardware
Table 4-3. PIO Port C Assignment (Continued)
I/O Line Peripheral A
PC24
PC25
PC26
PC27
PC28
PC29
PC30
PC31
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.
Table 4-4. Jumpers
4.4.3

Test Points

Some test points have been placed on the SAM3N-EK board for the verification of important signals.
Table 4-5. Test Points
Designation
TP1
TP2
TP3
TP4
4-12
11080C–ATARM–30-Mar-11
Peripheral B Peripheral C
TIOB3
TCLK3
TIOA4
TIOB4
TCLK4
TIOA5
TIOB5
TCLK5
Designation Label
JP1 JTAGSEL
JP2 ADVREF
JP3 PB12
JP4 VDDIO
JP5 VDDIN
JP6 VDDPLL
JP7 VDDCORE
JP8 +3V3
JP9 +3V3
Part
Ring Hook
Ring Hook
Ring Hook
Ring Hook
Extra Function EK Usage
ZB_IRQ0
ZB_IRQ1
ZB_SLPTR
AD13
AD14
AD15
Default
Setting
Close it to reinitialize the Flash content and some
of its NVM bits.
OPEN
This jumper must be closed for more than 220 ms
at power-up to perform the reinitialization.
Analog reference voltage selection, access for
CLOSE
external reference voltage
ERASE, Close to reinitialize the Flash contents and
OPEN
some of its NVM bits
CLOSE Access for current measurement on VDDIO
CLOSE Access for current measurement on VDDIN
CLOSE Access for current measurement on VDDPLL
CLOSE Access for current measurement on VDDCORE
DC voltage selection between 3.3V and 5V on PIO
1-2
expansion ports, default for 3.3V
DC voltage selection between 3.3V and 5V on PIO
1-2
expansion ports, default for 3.3V
Description
+5V
+3V3
GND
GND
SAM3N-EK Development Board User Guide
Device
ZigBee
ZigBee
ZigBee
Feature