Port Structure of 8051 Microcontroller
All 8051 microcontrollers have 4 input-output (IO) ports each of 8-bits which can be configured as inputs or outputs. The four ports are port 0, port 1, port 2 and port 3. Let’s understand the port structure of 8051 microcontroller for each port. Input/Output Ports in 8051 Microcontroller In order to configure a microcontroller pin …