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IBIS Simulation Model QSPI-IF of LS1046A

Question asked by Michael Frings Employee on Nov 12, 2018
Latest reply on Nov 12, 2018 by alexander.yakovlev

Ctm is doing signal Integrity simulations on the QSPI-If of our LS1046A design.

 They are using the IBIS model ‘ls1046_vop3_9april2016.ibs’

 For the QSPI-IF I found the models ‘lvcmos18_ssr_fc_out’ or ‘lvcmos18_fsr_fc_out’ for output pins and ‘lvcmos18_fsr_fc_io’ or ‘lvcmos18_ssr_fc_io’ for I/O-pins.

 They haven’t found a possibility to select between one of the two I/O characteristics in the Reference Manual nor in the Datasheet.

 Question:

Is there a possibility to select between the different driving strengths or it is fixed?

If fixed, which one is used?

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