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Reg No.:_ Name:

APJ ABDUL KALAM TECHNOLOGICAL UNIVERSITY
FIFTH SEMESTER B.TECH DEGREE EXAMINATION(R&S), DECEMBER 2019

Course Code: EC361
Course Name: DIGITAL SYSTEM DESIGN
Max. Marks: 100 Duration: 3 Hours
PARTA
Answer any two full questions, each carries 15 marks. Marks

1 a) Study the CSSN shown below and obtain the excitation expressions, excitation/ (9)
state transition table, state table and state diagram.

b) Generate an ASM chart for a Mealy network that detects non-overlapping (6)
sequence of 101.
2 a) Find the reduced flow table from the primitive flow table of a fundamental mode (9)
asynchronous sequential circuit given below.

Present
Next state Output
State P

௦ | 8 | | b | | ॐ | | - | | 0 | | - | | - |

थ

0) Explain critical and non-critical races in asynchronous sequential circuits with the (6)
aid of an appropriate state transition table.
3 a) Examine the ASC shown below to generate the excitation/transition table, state (7.5)

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