|
14. The vector address of RST 7.5 in 8085 processor is _______.
Ans. 003C (multiply 7.5 by 8 and convert to hex)
15. Subtract the following hexadecimal numbers--- 8416 - 2A16
16. Add the following BCD numbers--- 1001 and 0100
17. How much time does a serial link of 64 Kbps take to transmit a picture with
540 pixels.
18. Give the output when the input of a D-flip flop is tied to the output through the
XOR gate.
19. Simplify the expression AB + A( B + C ) + B ( B + C )
20. Determine the logic gate to implement the foolowing terms--ABC, A+B+C
21. Implement the NOR gate as an inverter.
22. What is the effect of temperature on the Icb in a transistor
23. What is the bit storage capacity of a ROM with a 512*4 organisation?
24. What is the reason of the refresh operation in dynamic RAM's ?
25. Suppose that the D input of a flip flop changes from low to high in the middle
of a clock pulse.Describe what happens if the flip flop is a positive edge triggered
type?
26. How many flip flops are required to produce a divide by 32 device ?
27. An active HIGH input S-R latch has a 1 on the S input and a 0 on the R input.
What state is the latch in?
28. Implement the logic equation Y = C^BA^ + CB^A + CBA with a multiplexer.
(where C^ stands for C complement)
29.Equivalent Gray code reprasentation of AC2H.
30. What does a PLL consist of ?
SECTION 2 - SOFTWARE SECTION
|
|
