I want to simulate GTX buses of Xilinx Kintex7 in Cadance Allegro PCB SI tools; but I need IBIS-AMi files for it. Do you know from where I can find them for Kintex7 devices and is there any difference between using IBIS-AMI files and IBIS files in Allegro?
I had the same problem with spartan6. then I had to contact Xilinx support, then they gave me the AMI models.
Normal ibis model and AMI model are totally different, they are not combined into one file.
As I said most FPGA compilers will spit out an IBIS file, try that, I have used these in preference to the generic files as the IO is preconfigured to the drive strength and pull up/downs catered for where applicable.