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HBhat2's avatar
HBhat2
Icon for Contributor rankContributor
6 years ago

Electrical IDLE in Transceiver

Hi, My requirement is keep the transceiver lines in Electrical Idle whenever the Logical Layer FSM goes into low power state. I found that we can select "Enable tx_PMA_elecidle port" under TX PMA ...
HBhat2's avatar
HBhat2
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6 years ago

Hi @cheepinc_Intel​ ,

Thank you for clarifying when tx_PMA_elecidle = 1, the transmitter will be tri-stated.

I have a requirement that the Transmitter to be in electrical IDLE for 100ns and after that the transmitter resumes its usual traffic. So, in order to keep the transmitter in electrical IDLE, should I make port tx_PMA_elecidle = 1 for 100ns, and drive the tx_PMA_elecidle = 0 afterwards?

With regards,

HPB

CheepinC_altera's avatar
CheepinC_altera
Icon for Regular Contributor rankRegular Contributor
6 years ago
Hi HPB, Yes, your understanding is correct. It is recommended for your to run simulation in Modelsim followed by hardware testing to verify your design functionality. You may start with simple XCVR design. Thank you. Best regards, Chee Pin