(a) Write a BSR control word to set bits PC7 and PC0 and to reset them after 1-second delay. (b) Determine the control word for the following configuration of the ports of 8255. Port A—output and...

(a) Write a BSR control word to set bits PC7

and PC0

and to reset them after 1-second delay.

(b) Determine the control word for the following configuration of the ports of 8255.

Port A—output and mode of port A is mode 1

Port B—output and mode of port B is mode 1

Remaining pins of Port C are used as input

(c) Write the interfacing procedure to interface 8253 with 8085 microprocessor.