Q2) Given the following devices: 8255 PPI at 1/0 address 60H, 8259 PIC at 1/0 address 70H, 74LS138 decoder, keyboard connected to the highest interrupt request with vector type 52 (decimal), parallel printer with vector type 55 (decimal). a. Show how to connect the above devices in an 80x86 system, In the l/0 decoding circuit include M/IO#, ADS#. b. Write the initialization code for the PPI interface c. Write the initialization code for the PIC use only ICWW1 and ICW2 d. Write a code to read a character from the keyboard then send it to the printer.

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