5. Interface a printer and a keyboard in mode 1. Port A is designed as output for printer with status check I/O and port B is designed as input for keyboard with interrupt I/O. a) Draw the mapping circuit in I/O mapped I/O. b) What are the port addresses captured by the PPI card. c) Generate required control words. d) Write initializing instructions and subroutines to read characters from keyboard and to send them to the printer.

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