I note that jitter parameters such as Rx_Dj are described in the IBIS document
as having Usage Info, Out, and Dep.
Ignoring Dep for the moment...
The specification defines Info as referring to parameters that may be of
interest to the EDA tool or to the user. Out is defined as referring to
parameters "coming from the AMI_Init and/or AMI_GetWave functions."
If the Usage is Info for a jitter reserved parameter, then I would assume the
jitter values will be read by the EDA tool to ensure it takes jitter into
account properly.
But what about Usage Out? This implies that the functions AMI_Init and/or
AMI_GetWave are generating the jitter. In this case, is Usage Out for jitter
meant to help a model-maker include the jitter in the DLL (and conceal it from
readers of the .ami file) but still make it available to the tool?
Thanks in advance...
- MM