Hi All, I hope that for filling the typ, min and max column data under V-I and V-t tables, PVT conditions are defined for each column. [Approach 1] But for filling the data under the [C_comp] keyword these PVT conditions are not defined. We are taking worst case fast process corner, maximum voltage and minimum temperature values for filling [C_comp] min column. And reverse for max column. By following above procedure for some buffers we are not getting C_comp values as per desirable sequence C_Comp(min) < C_comp(typ) < C_Comp(max). And hence we are getting warning message from the golden parser. Recently, I read following para from Cook book: [Approach 2] The C_comp parameter specifies the buffers input, output or I/O capacitance and can have a typical, minimum and maximum value. Note that when constructing the IBIS file the numerically largest value of C_comp is listed as the 'max' value while the numerically smallest value of C_comp is listed as the 'min' value. C_Comp min and max values do not necessarily correlate with the min and max conditions under which the I/V and switching data was gathered. Which one need to follow? Approach 1 or Approach 2? Thanks in advance. Best Regards, Venu. |------------------------------------------------------------------ |For help or to subscribe/unsubscribe, email majordomo@eda.org |with just the appropriate command message(s) in the body: | | help | subscribe ibis <optional e-mail address, if different> | subscribe ibis-users <optional e-mail address, if different> | unsubscribe ibis <optional e-mail address, if different> | unsubscribe ibis-users <optional e-mail address, if different> | |or email a written request to ibis-request@eda.org. | |IBIS reflector archives exist under: | | http://www.eda.org/pub/ibis/email_archive/ Recent | http://www.eda.org/pub/ibis/users_archive/ Recent | http://www.eda.org/pub/ibis/email/ E-mail since 1993Received on Wed Apr 27 04:32:14 2005
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