Visible to Intel only — GUID: nik1411004532654
Ixiasoft
Visible to Intel only — GUID: nik1411004532654
Ixiasoft
5.1. 100G Interlaken IP Core Clock Interface Signals
Signal Name |
Direction |
Width (Bits) |
Description |
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Clock Ports |
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pll_ref_clk |
Input |
1 |
Transceiver reference clock for the RX CDR PLL in IP core variations that target an Intel® Arria® 10 device. Transceiver reference clock for the RX CDR PLL and the TX transceiver PLL in all other variations.
The pll_ref_clk input clock frequency must match the value you specify for the Transceiver reference clock frequency parameter. |
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tx_serial_clk | Input |
NUM_LANES– | Clocks for the individual transceiver channels in 100G Interlaken IP core variations that target an Intel® Arria® 10 device. |
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clk_tx_common |
Output |
1 |
PCS common lane clock driven by the SERDES transmit PLL. The clock rate is the lane rate divided by 40 bits. The clk_tx_common frequency is 156.25 MHz for 6.25 Gbps, 257.8 MHz for 10.3125 Gbps, and 312.5 MHz for 12.5 Gbps per lane. |
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clk_rx_common |
Output |
1 |
Master recovered lane clock. The Interlaken specification requires all incoming lanes to run at the same frequency. |
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tx_usr_clk |
Input |
1 |
Transmit side user data interface clock. To achieve 100 Gbps Ethernet traffic throughput, you must run this clock at one of the following minimum frequencies:
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rx_usr_clk |
Input |
1 |
Receive side user data interface clock. To achieve 100 Gbps Ethernet traffic throughput, you must run this clock at one of the following minimum frequencies:
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mm_clk | Input |
1 | Management clock. Clocks the register accesses. It is also used for clock rate monitoring and some analog calibration procedures. You must run this clock at a frequency in the range of 100 MHz–125 MHz. |
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reconfig_clk | Input |
1 | Clocks the Intel® Arria® 10 transceiver reconfiguration interface. This clock is available only in IP core variations that target an Intel® Arria® 10 device. You should run this clock at a frequency of 100 MHz. |