We are currently using TMS320DM355ZCEA216 chip on our board. We are switching DDR parts and the one we are switching to has a smaller tolerance on maximum overshoot and undershoot. I got .ibis models for the two parts to simulate rise / fall times and see if we are still within tolerance. When I go to simulate these lines I need the TMS320DM355ZCEA216 to be an output but the only way I can get the pins to be an output is by putting the "model selector" to NO_SR0_NO_TERM -- Cell operated at 1.8(nom) NO_SR0 or SR0_NO_TERM -- Cell operated at 1.8(nom) SR0. I tried to locate on TI's website what this means but haven't found anything yet.
Is there an explanation of what the different models are for? What is SR0 exactly?
