2
LV24- v6 Development System
MikroElektronika
page
20.0. Input/Output Ports
Along the right side of the development system, there are twelve 10-pin connectors connected to the microcontroller’s I/O ports. Pins RB0,
RB1, RB6, RB7 and MCLR are used for programming and therefore are not directly connected to the appropriate 10-pin connectors, but
via the programmer’s multiplexer. DIP switch SW1-SW12 enable each connector pin to be connected to one pull-up/pull-down resistor.
Whether pins of some port are to be connected to a pull-up or a pull-down resistor depends on the position of jumpers J1-J12.
Figure 20-4
: Port PORTB connection schematic
Figure 20-2:
J10 in pull-down
position
Figure 20-3:
J10 in pull-up
position
Jumper for pull-up/pull-
down resistor selection
Figure 20-1
: I/O ports
DIP switch to turn on pull-
up/pull-down resistors for
each port pin
PORTB 2x5 male connector
Additional module connected
to PORTC
Port PORTB pins are connected to
pull-down resistors
