Construct the Karnaugh map for the following function, and find the function in sum of product form. Draw the resultant logic diagram. F (A, B, C, D): Σ (0, 2, 4, 5, 6, 7, 8, 10, 13, 15). 5m Dec2007 K-Map for F is: Thus, the simplified equations for F (A, B, C, D) =… Read More »
Give the Excitation tables and Block diagrams for the following: 10m Jun2007 (i) D flip-flop (ii) T flip-flop D Flip-Flop: The D flip-flop shown in Figure is a modification of the clocked SR flip-flop. The D input goes directly into the S input and the complement of the D input goes to the R… Read More »
Explain the basic principle of Quine-McCluskey method of simplifying the Boolean expression with the help of an example function. 6m Jun2007 Quine McKluskey Method A tabular method was suggested to deal with the increasing number of variables known as Quine McKluskey Method. This method is suitable for programming and hence provides a tool for automating… Read More »
Design and draw a master-slave flip flop using JK flipflops. What are the advantages it offers over other flip flops? 10m Jun2007 Master Slave Flip Flop Master-slave flip flop consists of two flip-flops. One is the master flip-flop & other is called the slave flip-flop. The figure shows implementation of master-slave flipflop using J-K flip-flop.… Read More »
List all the features of the RISC architecture. 6m Jun2007 List some important features of RISC architecture : One instruction per cycle: A machine cycle is the time taken to fetch two operands from registers, perform the ALU operation on them and store the result in a register. Thus, RISC instruction execution takes about… Read More »
Write an assembly language procedure for 8086 microprocessor that divides a 32-bit number by a 16-bit number. The procedure should be written in general, so that it may be defined in one module and can be called in any other module. 10m Jun2006 Large Number Division ;- J := (K*M)/P mov ax,… Read More »
Design a circuit to interface four RAMs of 128 x 8 size and a ROM of 512 x 8 size. Draw the memory map for the same. 8m Jun2007 Address lines:- 128 = 128 = 27 512 = 29 Address lines = 16
Decoder converts one type of coded information to another form. A decoder has ‘n’ inputs and an enable line (a sort of selection line) and 2n output lines. Let us see diagram of 3×8 decoder which decodes a 3 bit information and there is only one output line which gets the value 1 or in… Read More »
Simplify the following Boolean function using Karnaugh map method F( A ,B , C , D ) = Σ ( 1, 2 , 5 , 6 , 7 , 8 , 9 , 11 , 12 ,15 ) Also, draw the corresponding logic circuit diagram. 8m Jun2007 K-Map for F is: Thus, the simplified equations for F (A,… Read More »
(d) Explain, with an example of each call, any five DOS function calls supported by INT 21H in the 8086 assembly language. 10 DOS Function Calls (Using INT 21H) INT 21H supports about 100 different functions. A function is identified by putting the function number in the AH register. For example, if we… Read More »