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(Solved): Q1- Interfacing an 8255 chip with 8086 microprocessors to work as an I/O port which is shown in the ...
Q1- Interfacing an 8255 chip with 8086 microprocessors to work as an I/O port which is shown in the figure below. Initialize port A as input port, Port B as output port and port C UPPER as O/P port. Control word register address should be 00FEh, PPI A0 is connected to 8086 microprocessors Al, PPI A1 is connected to 8086 Microprocessor A2 Read the 8-bit data from Port A (switches status) and display the status on 8-bit LEDs on Port B while port C upper displays number of ON switches out of the total eight switches?