[SI-LIST] IBIS ramp problem in Hspice

All:

 Hi. I'm using an Ibis model in Hspice and am getting warnings in my output
listing. The warnings are:

 **warning**  Ramp_rwf is invalid so the ramp data is used 
      where Card = b_p1


 **warning**  Ramp_fwf is invalid so the ramp data is used 
      where Card = b_p1


I specify my model as:

B_P1  v+_ibis1  v-_ibis1  P1  IN  nd_en1  rcv_out1
+ file = 'model.ibs' model = 'genio' typ = slow  power = on
+ buffer = input_output
+ ramp_fwf = 2 ramp_rwf = 2


My model does have ramp data plus two rising and two falling waveforms
specified. Any idea why I'm getting these warnings? Do the waveforms have to
be in any specific order? I've got them listed as falling, rising, falling,
rising. Hspice 2002.2.

Any help would be appreciated.

Regards,

Matt


Matt Ruston
Symmetrix Hardware - L2P Engineering
Voice: 508-249-3092
Fax:    508-435-8809

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