How to make an N-width shift register in schematic composer

[West]

Hi,
I want to make an N-width shift register, with N flipfliops in the
schematic composer. Is it possible to use a parameter N for the number
of flipflops? I tried I1<1:N> on the flipflop instance and s<0:N-1> and
s<1:N> on the D input and Q output respectively. But this doens't work.
Does anybody know if there is a way to do this?

Kind regards, Wim de Haan

 

[Andrew Beckett]

On 28 Sep 2006 05:29:57 -0700, "West" <sybhs@yahoo.com> wrote:

Hi,
I want to make an N-width shift register, with N flipfliops in the
schematic composer. Is it possible to use a parameter N for the number
of flipflops? I tried I1<1:N> on the flipflop instance and s<0:N-1> and
s<1:N> on the D input and Q output respectively. But this doens't work.
Does anybody know if there is a way to do this?

Kind regards, Wim de Haan

This can be done using a schematic pcell - where the width is a parameter.

An example of doing something like this can be found at:

http://groups.google.com/group/comp.cad.cadence/tree/browse_frm/thread/af85ef423a13720f/cad41a0c1bcc5c72?rnum=1&q=busset&_done=%2Fgroup%2Fcomp.cad.cadence%2Fbrowse_frm%2Fthread%2Faf85ef423a13720f%2Fcad41a0c1bcc5c72%3Ftvc%3D1%26q%3Dbusset%26#doc_6c7f510f1d3e2f0d

Andrew.
--
Andrew Beckett
Principal European Technology Leader
Cadence Design Systems, UK.