Comments on: Setup and Hold times http://vlsihomepage.com/2007/09/13/setup-and-hold-times/ A Practical guide to VLSI Design and Verification.. Mon, 06 Sep 2010 16:51:42 +0000 http://wordpress.org/?v=2.2.2 By: Nigam http://vlsihomepage.com/2007/09/13/setup-and-hold-times/#comment-5031 Nigam Sun, 05 Jul 2009 03:40:00 +0000 http://vlsihomepage.com/2007/09/13/setup-and-hold-times/#comment-5031 Thanks guys for spotting the errors. Thanks guys for spotting the errors.

]]> By: JP http://vlsihomepage.com/2007/09/13/setup-and-hold-times/#comment-4432 JP Mon, 15 Jun 2009 01:07:55 +0000 http://vlsihomepage.com/2007/09/13/setup-and-hold-times/#comment-4432 The setup margin for the 2nd case is 0.950 ns and hold margin is 5.1 - 0.35 = 4.75ns The setup margin for the 2nd case is 0.950 ns and hold margin is 5.1 - 0.35 = 4.75ns

]]> By: Andrea http://vlsihomepage.com/2007/09/13/setup-and-hold-times/#comment-3785 Andrea Tue, 19 May 2009 14:22:52 +0000 http://vlsihomepage.com/2007/09/13/setup-and-hold-times/#comment-3785 also hold margin in the first case should be fixed also hold margin in the first case should be fixed

]]> By: Andrea http://vlsihomepage.com/2007/09/13/setup-and-hold-times/#comment-3784 Andrea Tue, 19 May 2009 14:12:51 +0000 http://vlsihomepage.com/2007/09/13/setup-and-hold-times/#comment-3784 Nice and clear, setup violation is -0.95 ns, not -1.05 ns Nice and clear, setup violation is -0.95 ns, not -1.05 ns

]]> By: Girish Pai http://vlsihomepage.com/2007/09/13/setup-and-hold-times/#comment-1260 Girish Pai Sun, 04 Jan 2009 08:26:24 +0000 http://vlsihomepage.com/2007/09/13/setup-and-hold-times/#comment-1260 Hi Nigam, Brilliant explaination. But i have one doubt regarding hold time calculation for 2nd case where u have got the final answer as 6.75 ns. Shouldnt the data expected time for hold be calculated with respect to negative edge of CKB as reg 2 negative edge triggered. In your case, u have calculated the expected time with respect to positive edge of CKB. Hi Nigam,

Brilliant explaination. But i have one doubt regarding hold time calculation for 2nd case where u have got the final answer as 6.75 ns.

Shouldnt the data expected time for hold be calculated with respect to negative edge of CKB as reg 2 negative edge triggered.

In your case, u have calculated the expected time with respect to positive edge of CKB.

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