Question: Set 3E: 3. Figure 2 shows an input/output (1/0) interface in an 8086 system. Based on the figure, answer the following questions. (a) Determine the
Set 3E: 3. Figure 2 shows an input/output (1/0) interface in an 8086 system. Based on the figure, answer the following questions. (a) Determine the port addresses for Port A, Port B, Port C, and command register of the 8255 programmable peripheral interface (PPI). (8 marks) (b) Determine the command byte for the 8255 PPI (8 marks) (e) Write an assembly language to program the 8255 PPI. (4 marks) Stepper motor 8255 12 V Sli LWR P8 PS, PB PB) PB PBS PB WR A1 A2 RESET CS RESET LED: LED2 buzzer Figure 2
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