Hi
what algorithm does xpower use to calculate the freqency of internal nodes in a netlist ? is it some kind of transition density propagation but that method requires activity factor for primary inputs and also probabilities of primary inputs.
Also is the interconnect power dissipation taken into account ?
Thanks for any help swamy
The most basic method is through user i/p. Others include importing simulation information and also the use of a probability algorithm in how primary i/ps are propagated.
The interconnect power dissipation is definitely taken into account.
Brendan
Hello Brendan
Thanks for the reply. When we enter a frequency for the primary input in Xpower, for example 1 Mhz, does it consider the input to be a square wave ? My primary inputs do not toggle every cycle, so the term "frequency" is confusing to me. any clarification is greatly appreciated.
Thanks swamy
Brendan Cullen wrote:
internal
propagation
also
how
Yes.
I'd suggest assessing your primary i/ps' average transition rate over a period of time and inferring frequencies from that.
Brendan
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