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Altera_Forum
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10 years ago

Arria V 1.5v PCML Read

Hi, I would like to use signal tap to read the value on a number of 1.5v PCML pins, however, using signal tap to probe these pins causes an error stating that the pins must have a fanout of 1. ...
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Altera_Forum
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10 years ago

"3) What are dedicated transciever pins and why does the output of a transciever pin (that has no signal on the line) connected to the custom PHY produce non-zero output values?

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Transceiver pins on the FPGA can only be used for high speed transceiver application. You cannot use it for other IO purpose. The non-zero output values might be due to noise or if you have 8b10b block enabled, it might decode 0 data to non-zero values.