A logic network has two data inputs A and B, and two control inputs C_{0} and C_{1}. It implements the function F according to the following table.
Implement the circuit using one 4 to 1 Multiplexer, one 2input Exclusive OR gate, one 2input AND gate, one 2input OR gate and one Inverter.
In the following truth table, V = 1 if and only if the input is valid.
What function does the truth table represent?
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Consider the following combinational function block involving four Boolean variables x,y,a,b where x,a,b are inputs and y is the output.
if(x, a,b,y)
{
if( x is 1) y=a;
else y=b;
}
Which one of the following digital logic blocks is the most suitable for implementing this function?
How many pulses are needed to change the contents of a 8bit up counter from 10101100 to 00100111 (rightmost bit is the LSB)?
The minimum number of D flipflops needed to design a mod258 counter is
Let = k = 2^{n}. A circuit is built by giving the output of an nbit binary counter as input to an n to2^{n} bit decoder. This circuit is equivalent to a
Consider a 4bit Johnson counter with an initial value of 0000. The counting sequence of this counter is
The next state table of a 2bit saturating upcounter is given below.
The counter is built as a synchronous sequential circuit using T flipflops. The expressions for are
The dual of a Boolean function written as is the same expression as that of F with + and swapped. F is said to be selfdual if . The number of selfdual functions with Boolean variables is
Latches constructed with NOR and NAND gates tend to remain in the latched condition due to which configuration feature?
Find the maximum clock frequency at which the counter in the figure below can be operated. Assume that the propagation delay through each flip flop and each AND gate is 10 ns. Also assume that the setup time for the J K inputs of the flip flops is negligible.
The exponent of a floatingpoint number is represented in excessN code so that:
The following is a scheme for floating point number representation using 16 bits
Let s, e, and m be the numbers represented in binary in the sign, exponent, and mantissa fields respectively. Then the floating point number represented is:
What is the maximum difference between two successive real numbers representable in this system?
Consider the following floatingpoint format.
Mantissa is a pure fraction in signmagnitude form.
The decimal number has the following hexadecimal representation (without normalization and rounding off):
Consider the following floatingpoint format.
Mantissa is a pure fraction in signmagnitude form.
The normalized representation for the above format is specified as follows. The mantissa has an implicit 1 preceding the binary (radix) point. Assume that only 0’s are padded in while shifting a field.
The normalized representation of the above number
55 docs215 tests

55 docs215 tests
