1G/2.5G/5G/10G Multirate Ethernet PHY IP User Guide: Agilex™ 3 and Agilex™ 5 FPGAs and SoCs

ID 813667
Date 8/04/2025
Public

A newer version of this document is available. Customers should click here to go to the newest version.

Document Table of Contents

5.8. Transceiver Mode and Operating Speed Signals

Table 25.  Transceiver Mode and Operating Speed Signals
Signal Name Direction Width Description PHY Configurations
xcvr_mode Input 2 Current transceiver operating mode:
  • 2’b00: 1G
  • 2’b01: 2.5G
  • 2’b10: Reserved
  • 2’b11: 10G
Note: For variants with Dynamic Reconfiguration (DR) enabled, the xcvr_mode should be derived by the one_hot_sel signal from the DR controller.
  • 2.5G
  • 1G/2.5G
  • 1G/2.5G/10G
  • 10M/100M/1G/2.5G (MGBASE)
  • 10M/100M/1G/2.5G/10G (MGBASE)
  • 1G/2.5G/10G MGBASE PCS only
operating_speed Output 3

Indicates the current PHY speed set through speed switch methodologies. This signal does not reflect the transceiver data rate.

Connect this signal to the MAC.

  • 3’b000: 10G
  • 3’b001: 1G
  • 3’b010: 100M
  • 3’b011: 10M
  • 3’b100: 2.5G
  • 3’b101: 5G (Only valid for NBASE)
  • 3’b110: Unused
  • 3’b111: Unused
All