Assigned Pio Lines, Disconnection Possibility - Atmel SAM3N-EK User Manual

Table 4-5. Test Points (Continued)
Designation
TP5
TP6
TP7
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.
Table 4-6. Disconnection Possibility
Designation
R2
R3
R9, R5
R4, R10
R17
R39
R40
R47
R48
R49
R50
SAM3N-EK Development Board User Guide
Part Description
Ring Hook GND
Pad UTXD0
Pad URXD0
Default Assignment
XIN
XOUT
XIN32
XOUT32
EN_LCD
URXD0
UTXD0
ZB_RSTN
IRQ1_ZBEE
IRQ0_ZBEE
SLP_TR
PIO
PB9
PB8
PA7
PA8
PC13
PA9
PA10
PC23
PC25
PC24
PC26
Evaluation Kit Hardware
4-13
11080C–ATARM–30-Mar-11