home *** CD-ROM | disk | FTP | other *** search
- !Documentation
-
- (c) Copyright 1992 Genashor Corp. All rights reserved.
-
- After performing simulations using nominal delays, you know that
- actual delays in silicon will differ. SIMIC has unique hazard
- analysis capabilities that inform you if minor delay variations will
- cause the circuit to malfunction.
-
- This circuit is a divide by seven counter made up of T flip flops.
- Using the SIMIC run commands in the file 'div7.run', you will see
- how circuit troubleshooting is performed in SIMIC. Though this
- debugging session will be done in batch mode, SIMIC allows any
- command to be entered interactively. This allows each step of the
- circuit debugging to be chosen based on the results of the previous
- information.
-
- Though this circuit has fixed delays, SIMIC allows delays to be
- modified with loading conditions.
-
- !Logical
- !Format Part= Type= I= Orise= Ofall=
- Type=divide_by_7 I=clock,reset O=q4
- q1 tncf reset,skip_2,clock
- q2 tncf reset,one,cl2
- q4 tncf reset,one,cl4
- skip_2 nand nq4,nq1_q2 1 1
- nq1_q2 nor nq2,q1 3 3
- nq2 inv q2 2 2
- nq4 inv q4 6 3
- cl2 and q1,clock
- cl4 and q1,q2,clock