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1. Quick Start Guide
2. 10M/100M/1G Ethernet Design Example
3. 1G Ethernet Design Example with IEEE 1588v2 Feature
4. 2.5G Ethernet Design Example
5. 2.5G Ethernet Design Example with IEEE 1588v2 Feature
6. 10G Ethernet Design Example
7. 10M/100M/1G/2.5G/5G/10G (USXGMII) Ethernet Design Example
8. 10M/100M/1G/2.5G/5G/10G (USXGMII) Ethernet Design Example with IEEE 1588 Design Example
9. Interface Signals Description
10. Configuration Registers Description
11. Low Latency Ethernet 10G MAC Intel® FPGA IP Design Example User Guide: Agilex™ 5 FPGAs and SoCs Archives
12. Document Revision History for the Low Latency Ethernet 10G MAC Intel® FPGA IP Design Example User Guide: Agilex™ 5 FPGAs and SoCs
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4.3.3. Reset Scheme
Upon power-up, reset the design example (i_rst_n, i_tx_rst_n, and i_rx_rst_n) and wait for o_rst_ack_n, o_tx_rst_ack_n, and o_rx_rst_ack_n signals to get asserted to de-assert the resets. Asserting these signals resets all channels and their components.
Reset sequencing logic handles the resets to MAC and PHY by considering the input i_rst_n, i_tx_rst_n, and i_rx_rst_n as well as tx_ready and rx_ready status signals from PHY.
Figure 19. Reset Scheme for 2.5G Ethernet Design Example
Reset controls for the design can be done through the In-System Sources and Probes (ISSP) provided in the example design with reset inputs mapped as below:
Bit | ISSP |
---|---|
0 | i_rx_rst_n |
1 | i_tx_rst_n |
2 | i_rst_n |
3 | reconfig_reset |