Microprocessors Assignment / Discussion

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.

1. 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.