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Configuration
Table 4-1. Configuration Jumpers and Straps
Designation
R76
R78
R80
R82
R87
R89
R91
R93
R112
R126
R127
R128
TP67
TP68
TP69
TP70
TP71
TP72
TP73
TP74
Default Setting
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
N.A
N.A
N.A
N.A
N.A
N.A
N.A
N.A
Feature
Enables the use of the RS232 COM PORT TXD signal (PA26)
Enables the use of the RS232 COM PORT RTS signal (PA28)
Enables the use of the RS232 COM PORT RXD signal (PA27)
Enables the use of the RS232 COM PORT CTS signal (PA29)
Enables the use of the CAN BUS driver RS control signal (PA26)
Enables the use of the CAN BUS driver CANTXRT RTS signal (PA28)
Enables the use of the RS232 COM PORT RXD signal (PA27)
Enables the use of the RS232 COM PORT CTS signal (PA29)
Enables the use of interrupt ETHERNET PHY (PE31)
Enables the use of TOUCH SCREEN CONTROLLER
(PB11_SPI0_NPCS3)
Enables the use of TOUCH SCREEN CONTROLLER BUSY signal
(PA31)
Enables the use of TOUCH SCREEN CONTROLLER PENIRQ
(PA15_IRQ1)
GND Test point
GND Test point
GND Test point
GND Test point
0 to 3.3V analog user's input
0 to 3.3V analog user's input
AGND of TP71
AGND of TP72
Note:
4-2
6325D–ATARM–26-Aug-09
1. These jumpers are provided for power consumption measurement use. By default, they are closed. To
use this feature, the user has to open the strap and insert an ammeter.
2. AT91SAM9263 ETM signals [TPK0 - TPK15] are multiplexed with EBI0 signals [EBI0_D16 - EBI0_D31].
AT91SAM9263-EK EBI0 signals [EBI0_D16 - EBI0_D31] are connected to an SDRAM device
(part MN7).
Having this SDRAM device enabled adds capacitance to the data line [EBI0_D16 - EBI0_D31], which
leads to ETM data corruption.
You need to remove the resistor R30 to release the EBI0_NCS1_SDCS signal and put the SDRAM
I/Os [EBI0_D16 - EBI0_D31] in High-Z. Having these signals in High-Z removes the added capaci-
tance; the ETM signals are no longer corrupted.
AT91SAM9263-EK Evaluation Board User Guide
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