Respond to the following:
• Explain Parallel I/O.
• Describe an application that involves parallel I/O interface with a microprocessor.
Respond to the following:
• Explain Serial I/O.
• Describe an application that involves serial I/O interface with a microprocessor.
⦁ Answer the following questions from your assigned textbook:
⦁ Chapter 10: Problems 11, 20, and 24.
11. Modify the design of Figure 10.7 so that the port address is 409C.
20. Determine the mode words for each 8255 configuration:
(a) Mode 0, Ain, Bout, Cin
(b) Mode 1, Aout, Bin
(c) Mode 2, Bin (Mode 0)
24. Sketch the 11-bit transmission code for an ASCII “K.” Use even parity and 2 stop bits.
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