Atmel ATSAM3N-EK Hoja De Datos
Evaluation Kit Hardware
SAM3N-EK Development Board User Guide
4-13
11080C–ATARM–30-Mar-11
4.4.4
Assigned PIO Lines, Disconnection Possibility
As pointed out in previous interface descriptions, 0-Ohm resistors have been inserted on the PIO lines
receiver path of the SAM3N-EK. Some PIO lines are connected to an external driver on the board. The
0-Ohm resistors allow disconnecting each of these for custom usage (through PIO expansion connec-
tors, for example). This feature gives the user an added level of versatility for prototyping a system of his
own. See the table below.
receiver path of the SAM3N-EK. Some PIO lines are connected to an external driver on the board. The
0-Ohm resistors allow disconnecting each of these for custom usage (through PIO expansion connec-
tors, for example). This feature gives the user an added level of versatility for prototyping a system of his
own. See the table below.
TP5
Ring Hook
GND
TP6
Pad
UTXD0
TP7
Pad
URXD0
Table 4-5. Test Points (Continued)
Designation
Part
Description
Table 4-6. Disconnection Possibility
Designation
Default Assignment
PIO
R2
XIN
PB9
R3
XOUT
PB8
R9, R5
XIN32
PA7
R4, R10
XOUT32
PA8
R17
EN_LCD PC13
R39
URXD0
PA9
R40
UTXD0
PA10
R47
ZB_RSTN
PC23
R48
IRQ1_ZBEE
PC25
R49
IRQ0_ZBEE
PC24
R50
SLP_TR
PC26