Direct reset MOD 12 synchronous down counter
circuit
Designed using falling edge trigger SR FF
It is desirable. A, B, C, and D FFs in the circuit to be
designed
It will be used. Here the highest-valued output is considered
A
It will be. When this design is done, only SA and RA of A FF
after doing logic functions to be applied to their inputs
then write in the fields below. (Counter circuit design
write the steps in the...
A) Design 0?379 count?up counter with BCD counter
blocks if input clear signal is synchronous.
B) Design 0?379 count?up counter with BCD counter blocks if
input clear signal is Asynchronous.
C) Design of 1/577 frequency divider with BCD count?up counters
(Clear signal is Asynchronous)
(a) What is the difference between synchronous and asynchronous
stream ciphers.
(b) Who was Horst Feistel?
(c) What is the main weakness of affine ciphers?
(d) What is the Kerckhoffs’ principle?
(e) Suppose a block cipher uses m-to-m bits S-boxes. How many
bits are required to store the look-up table of k different such
m-to-m bits S-boxes? Give a formula in terms of k and m. Hint: A
look-up table for one DES S-box requires 256 bits of storage.
(a) Design a 4-bit ring counter. Use an external asynchronous
INIT input to initialize the flip-flops to a valid initial state.
Also remember to hook up the CLOCK to all flip-flops.
(b) Design a 4-bit Johnson counter. Use an external asynchronous
INIT input to initialize the flip-flops to a valid initial state.
Also remember to hook up the CLOCK to all flip-flops.
(c) How many states does the ring counter in part (a) have? How
many states does the Johnson...
a)Differences between asynchronous and synchronous generators?
Which one applies in the plants and why?
b)Where do gas and steam turbines apply, not to mention in power
plants?
c) What are the main components of the wind generator system or
solar-batteries-substation?
d) What is the difference between using the star or triangle
connection at the start of an engine?
e) In equipment tests, what is the difference between type, routine
and special tests?
f) Why are insulated cables not used in...