Configuration Straps
4-2 AT91SAM7A3-EK Evaluation Board User Guide
6165C–ATARM–26-Jun-06
S1 Opened Solder it, enables permanent pull up on USB DP. S3 must
be open.
S2 Closed The System Reset signal (NRST) is connected to the
ICE/JTAG socket (J8, pin 15).
S3 Closed Enables the use of the USB DP PUP (PB1)
S4 Closed Enables the use of the USB CNX detection (PB0)
S5 Closed Digital Analog GND planes separation. Do not cut it
S6
Closed Disables shutdown control and forces Power on.
Do not close at same time as S7.
Opened Enables shutdown control
S7
Opened Disables shut down control
Closed Enables shutdown control
Do not close at same time as S6.
S8 - S9 Closed Enables the use of 18.432 MHz crystal. Must be open if
external clock used.
S10 Closed Enables the Power LED control
S11 Closed Enables the use of the NPCS13
S12 Opened Disable Serial DataFlash write protect
S13 Closed Enables the use of the TXD CAN0 transceiver (PA27)
S14 Closed Enables the use of the RXD CAN0 transceiver (PA26)
S15 Closed Enables control of the Standby/Normal mode for CAN0
and CAN1 transceivers (PA23)
S16 Closed Enables the use of the TXD CAN1 transceiver (PA29)
S17 Closed Enables the use of the RXD CAN1 transceiver (PA28)
S18 Opened Enables control of the Standby/Normal mode for CAN0
and CAN1 transceivers (PA23).
If S18 is closed, S15 must be open.
S19 Closed Enables the use of PWM0 Analog Output (PA18)
S20 Closed Enables the use of AD02 Analog Input (PB16)
S21 Closed Enables the use of AD03 Analog Input (PB17)
S22 Closed Enables the use of the TXD LIN transceiver (PA3)
S23 Closed Enables the use of the RXD LIN transceiver (PA2)
S24 Closed Enables the control of the EN LIN transceiver (PA5)
S25 Closed Enables the control of the INH LIN transceiver (PA6)
S26 Opened Do not use
S27 Closed Enables the use of the User LED DS4 (PA25)
S28 Closed Enables the use of the User LED DS3 (PA24)
S29 Closed Enables the use of the User LED DS2 (PA21)
S30 Closed Enables the use of the User LED DS1 (PA20)
Table 4-1. Configuration Jumpers and Straps (Continued)
Designation
Default
Setting Feature
