I am confused about how to configure ports of AT89S52. It has four I/O ports where in each port contains 8 pins that can be configured as inputs or outputs. It can be configured as input or output depends on logic state.
In order to configure a pin of AT89S52 as an output, it is necessary to send a logic zero (0) to the port pins. In this case, the voltage level at the appropriate pin will be 0.
Similarly, in order to configure a pin of AT89S52 as an input, it is necessary to send a...
Understanding the AT89S52’s pin configuration
In order to configure a pin of AT89S52 as an output, it is necessary to send a logic zero (0) to the port pins. In this case, the voltage level at the appropriate pin will be 0.
Similarly, in order to configure a pin of AT89S52 as an input, it is necessary to send a...
Understanding the AT89S52’s pin configuration