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Occasional Contributor
Occasional ContributorConfiguring Arria V Transceiver PLL for 2.5G Ethernet
Hello, I want to use the Multi-rate Ethernet IP at 2.5G on an Arria V device The datasheet mentions that rx_clkout will be derived from tx_serial_clk: And it seems like I’ll need to us...
Hello,
After checking on this, here's the connection guideline:
- The proper connections are to connect "fboutclk" to "pll_fbclk" and to leave "hclk" open.
Hope I've answered your query.
Regard,
Pavee
paveetirrasrie_Altera
Frequent Contributor
Frequent ContributorHere's the connection required to operates PLL for 2.5G
Serial clock from transceiver PLLs.
• 2.5GbE: Connect bit [0] to the transceiver PLL. This clock operates at 1562.5 MHz
• 1GbE: Connect bit [1] to the transceiver PLL. This clock operates at 625 MHz.
• 10GbE: Connect bit [2] to the transceiver PLL. This clock operates at 5156.25 MHz.
Kindly refer to https://www.intel.com/content/www/us/en/docs/programmable/683171/current/clock-and-reset-signals.html for more detailed explanation.
Regards,
Pavee
