5. JUMPERS, CONNECTORS AND INTERFACES
In this chapter you will find the description of the jumpers and what signals might be found on the
different connectors.
5.1 JUMPER DESCRIPTION
3.3V_E –
Enables 3.3V supply for PIC32MX795F512L and all other devices.
Default state closed (shorted).
3.3VA_E –
Enables 3.3V positive supply for analog modules.
Default state is closed (shorted).
VDD_E –
Enables PIC32MX795F512L's 3.3V power supply.
Default state is closed (shorted).
AGND_E –
Enables the analog ground.
Default state is closed (shorted).
CAN1_T –
This jumper assures correct work of the CAN1. At each end of the bus it
should be closed. This means that if you have only two devices with CAN, the jumpers of
both devices should be closed. If you have more than two devices, only the two end devices should
be closed.
Default state is closed (shorted).
CAN1_D –
CAN Disable. If this jumper is closed, the CAN1 is disabled.
Default state is open (not shorted).
CAN2_T –
This jumper assures correct work of the CAN2. At each end of the bus it
should be closed. This means that if you have only two devices with CAN, the jumpers of
both devices should be closed. If you have more than two devices, only the two end devices should
be closed.
Default state is closed (shorted).
CAN2_D –
CAN Disable. If this jumper is closed, the CAN2 is disabled.
Default state is open (not shorted).
5.2 INPUT/OUTPUT
User button with name BUT1 – connected to PIC32MX795F512L pin 83
(ETXEN/PMD14/CN15/RD6).
User button with name BUT2 – connected to PIC32MX795F512L pin 84
(ETXCLK/PMD15/CN16/RD7).
User button with name BUT3 – connected to PIC32MX795F512L pin 80
(ETXD3/PMD13/CN19/RD13).
Reset button with name RESET – connected to PIC32MX460F512L pin 13 (#MCLR).
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