Assignment 2 Name_____________________ __________________________

First Last

1. Name the bits of the STATUS register:

1. C

2. N

3. Z

4. DC

5. OV

2. What is the difference between a CALL and a GOTO in terms of program flow?

3. What is similar between a RETURN and a RETFIE instruction? Include a difference in their operations?

4. Explain what is the Stack used for and what are its limits.

5. Explain 3 design features of the PIC18F85K22 that improves the speed of operation? Include how they improve the speed?

6. What does the Program Counter do in the Microcontroller?

7. Answer the following regarding the Stack.

a. What is the size of the stack?

b. What is the Stack used for?

c. List what instructions use the Stack?

8. What are the special reserved locations in Program memory and what are they used for?

9. What is the word size of the PIC18F85k22?

10. What is the bit size of the PIC18F85k22?

11. What is the data path width?