Course: microprocessors Book: The Intel Microprocessor Family by James Antonakos (too large to download).
Questions (Chapter 10):
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.
Chapter 11: Questions 1, 4, and 14 (pp. 412-413)
What are the main differences between polled I/O and interrupt-driven I/O?
How many slaves are required if ICW3 in a master 8259 contains 01100101? What devices are connected to each IR input?
What mode-0 counter value is needed to get a 25-ms time delay? A l-MHz clock is connected to CLK.