The counter in Figure 7-1 starts off in the 0000 state, and then clock pulses are applied. Some time later the clock pulses are removed, and the counter FFs read 0011. How many clock pulses have occurred?

Figure 7-1

Transcribed Image Text:

CLOCK B C B PEPE CLKO CLKO K B K D D CLK O K с "All J and K inputs assumed to be 1. 6 A J FIGURE 7-1 Four-bit asynchronous (ripple) counter. CLKO K 10 11 12 13 14 15 16 17 18 DCBA [00000001001000110100 0101 0110 01111000 1001 1010 1011 1100 1101 1110 (count) ♫ 000000010010 Recycle to 0000