Re: Understanding Clock Cycles

Posted by ybakos on
URL: http://nand2tetris-questions-and-answers-forum.52.s1.nabble.com/Understanding-Clock-Cycles-tp712205p714355.html

I highly recommend that you read Code (by Petzold), specifically the chapter on Flip Flops. Knowing how the edge-triggered flip flop works as a circuit is much better than resting on its theoretical behavior (in my opinion). Once you see how the circuit works, the whole input(t-1) vs. output thing becomes simple to grasp.

These interactive circuit diagrams also help:

http://www.play-hookey.com/digital/d_nand_latch.html

I'm not sure about your plaintext description of the behavior... to me, it's really summed up by the PC specification (see the 'Function' declaration) and the digram below it, on page 51.