Datasheet
27
BIG8051
MikroElektronika
page
21.0. Input/output ports
Along the right side of the development system, there are eight 10-pin connectors linked to the microcontroller I/O ports.
Due to DIP switches SW1-SW8, every connector pin can be connected to one pull-up/pull-down resistor. It depends on
the position of jumpers J1-J8 whether they will be connected to pull-up or pull-down resistor.
Figure 21-4: Port PORT7 connection schematic
)LJXUH J9 in pull-
down position
)LJXUH J9 in pull-up
position
Figure 21-1: I/O ports