
THE HARDWARE STRUCTURE OF 8086 6-31
9. What is the difference between the 74LS244 and 74LS245 ICs?
10. When is the READY pin sampled?
11. What is the difference in the interrupt signals INTR and NMI?
12. What are the functions of the HOLD and HLDA pins?
13. When is the HOLD pin sampled?
14. How many wait cycles can be inserted in a bus cycle?
15. How can the processor be taken out of the HALT state?
16. What is ALE expected to do? What is the duration of ALE?
17. What is the purpose of the LOCK pin?
18. Which are the control signals which are not available from the 8086 in the maximum
mode?
19. Why is it that the time for fetching an instruction ...