Sample Questions for Preparing Exam of ELE408

1. What are the different methods that activate a DMA channel in MCF5208?

2. Design a 6 bits linear code that can detect 2 bits errors.

3. What is the miss ratio when accessing a row of 5 by 6 matrix stored in column-major? Assume the cache is direct-mapped with 8 lines and each matrix element occupies one cache line

4. Write an interrupt program to display ABAB on the display

5. Write a program to move N words from one memory location to another

6. Do the same as 5 but using DMA

7. Consider the following program. What happens after running the program?

MOVEA.B #$FE, A0

ADD.L #$E000,D0

ADD.L #$FE,D0

ADDA.L #$E000,A0

ADDA.L A0, A1

8. The 16 bits status register of MCF5208 is used to

a) store the processor status

b) make an interrupt request

c) set the conditional codes (CCR) to 1

d) determine when a trace mode is used

e) None of the above is correct