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Section A.

1. Intel Pentium chips used in Windows PCs need external

chips to store data.

bytes of on-chip data RAM.

2. The ATmega64 has

3. Which of the following is (are) illegal?

and

[50 marks]

(a) ADD R20, R11 (b) ADD R16, R1 (c) ADD R52, R16

4. What is the status of the C flag after the following code?

LDI R20,0x54

LDI R25, 0xC4

ADD R20, R25

5. True or False. In BREQ instruction, the compiler jumps to location if zero flag is

active.

6. The time delay of following program is

LDI R15, 12

LDI R16, 14

LDI R21, 5

ADD R15, R16

ADD R15, R21

7. Write a short program that make all pins of PORTB one using R19 register.

8. True or False. Parallel communication needs fewer traces and wires than serial

communication.

if crystal frequency is 8 MHz: