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Altera_Forum
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10 years ago

OCT Termination - how many pins?

Hello I want to use 50 ohm oct termination with calibration on an Cyclone IV E device (EP4CE55F23C7). In the QSF file i define the termination for a 8bit bus RAM0_DQA: set_instance_assi...
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Altera_Forum
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10 years ago

Hello rromano001

Thanks for your answer. I´ve solved the problem in meantime.

Tho one thing is do assign the output termination to a number of pins. The pins also have to be assigned to a bank. As far as there are enough pins in that bank, it works. Without a termination quartus fitter spreads the pins to several banks and everything is fine. With a termination quartus fitter dose not spread the pins, and user has to do that.

Best Regards