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TerryU
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7 years ago

Arria 10 Transceiver PHY parameters for CDR

Hi experts, I have reference lock issue on high speed interface mode. Then, I would need CDR-PLL related values, actually I have found some improvement with modification. However the following param...
TerryU's avatar
TerryU
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7 years ago

Hi Chee-san,

I attach a file including two screen shots of Signal Tap​. The rx_is_lockedtoref is rise up immediately after releasing rx_analogreset in Pass board. However the rx_is _lockedtoref always stays Low after rx_analogreset. I have done a plenty of analysis, reset timing, clock waveform check etc. , but there was no solution without those value's modification so far.

Regards,

TerryU/Tetsuya