By Mohammad A. Karim
ISBN-10: 1420061321
ISBN-13: 9781420061321
In today’s electronic layout surroundings, engineers needs to in achieving fast turn-around time with prepared accesses to circuit synthesis and simulation functions. this sort of productiveness is determined by the rules and practices of desktop aided layout (CAD). Digital layout: easy options and Principles addresses the numerous demanding matters serious to today’s electronic layout practices comparable to risks and good judgment minimization, finite-state-machine synthesis, cycles and races, and testability theories whereas offering hands-on adventure utilizing one of many industry’s most well liked layout program, Xilinx net PACK™.
The authors commence by way of discussing traditional and unconventional quantity platforms, binary coding theories, and mathematics in addition to common sense capabilities and Boolean algebra. development upon vintage theories of electronic structures, the e-book illustrates the significance of good judgment minimization utilizing the Karnaugh map process. It keeps via discussing implementation suggestions and analyzing the professionals and cons of every process as well as an review of tradeoffs that regularly accompany layout practices. The ebook additionally covers testability, emphasizing reliable electronic layout has to be effortless to make sure and try out with the bottom price attainable. in the course of the textual content, the authors examine combinational and sequential good judgment parts and illustrate the designs of those parts in structural, hierarchical, and behaviour VHDL descriptions.
Coveringfundamentals and top practices, electronic layout: uncomplicated ideas and Principles provide you with severe wisdom of ways each one electronic part ties jointly to shape a method and develops the abilities you must layout and simulate those electronic parts utilizing sleek CAD software.
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Additional resources for Digital Design : Basic Concepts and Principles
Example text
When the dividend and divisor are respectively of size n + p bits and p bits, the corresponding quotient and remainder turn out to be of size n bits and p bits, respectively. For an overflow condition, the divisor is either 0 or the quotient occupies more than n bits. This division scheme for the unsigned numbers can be extended to handle signed numbers as well. Typically, one performs an unsigned division of the magnitudes and makes the quotient positive (or negative) if the two operands have the same (or different) signs.
In both of these representations, sign bit of a positive number is a 0 and that of the negative number is R − 1. This convention provides for an unambiguous representation of sign for all three representations. In signed (R − 1)s representation, the complement is obtained by subtracting each digit of the corresponding positive number from R − 1. On the other hand, a 1 is added to the least significant position of the (R − 1)’s complement to obtain the corresponding R’s complement number. Consequently, the 8-bit binary positive number (0 0101010)2 when complemented yields (1 0101010)2 in sign-and-magnitude Data Type and Representations 17 representation, (1 1010101)2 in signed 1’s complement representation, and (1 1010110)2 in signed 2’s complement representation.
1510 ) through 1111 (1510 ) which amounts to 31 dif¯ 0, 1}, a ferent numbers. , 1, 4 4-digit signed-binary number can represent up to 3 = 81 numbers. 7%) are redundant numbers. For example, the signed¯ ¯ and 1110 ¯ digit numbers 0110, 0010 all represent −210 . As we shall show here, it is sometimes advantageous in certain arithmetic operations to have a built-in redundancy. One of its key attractive features is that we may be able to eliminate significantly the need to account for carry propagation while adding numbers.
Digital Design : Basic Concepts and Principles by Mohammad A. Karim
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