August
1997 QUESTION 5 Total Marks: 20 Marks |
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| 5. | (a) | (i) How many flip-flops are required to build a binary counter circuit that can count from 0 to 1023? | [1] |
| (ii) What would be the MOD number of the counter? | [1] | ||
| (iii) If the counter is initially at zero, what count will it hold after 2060 pulses? | [2] | ||
| (b) Draw a 3-bit asynchronous down counter using negative edge triggered JK flip flops. (Label all of the inputs and outputs clearly.) | [8] | ||
| (c) Draw the circuit diagram for the synchronous parallel transfer of data from one 3-bit register to another using positive edge triggered JK flops. (Label all of the inputs and outputs clearly.) | [8] | ||