F-Tile 1G/2.5G/5G/10G Multi-rate Ethernet PHY Intel® FPGA IP User Guide

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ID 720989
Date 2/23/2022
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Document Table of Contents
Document Table of Contents x
1. About the F-Tile 1G/2.5G/5G/10G Multi-rate Ethernet PHY Intel® FPGA IP User Guide 2. 1G/2.5G/5G/10G Multi-rate Ethernet PHY Intel® FPGA IP Overview 3. Getting Started 4. Functional Description 5. 1G/2.5G/5G/10G Multi-rate Ethernet PHY Intel® FPGA IP Parameters 6. Interface Signals 7. Configuration Registers A. Document Revision History for the F-Tile 1G/2.5G/5G/10G Multi-rate Ethernet PHY Intel® FPGA IP User Guide
2. 1G/2.5G/5G/10G Multi-rate Ethernet PHY Intel® FPGA IP Overview x
2.1. Release Information 2.2. Features 2.3. Device Family Support 2.4. Device Speed Grade Support 2.5. Resource Utilization
3. Getting Started x
3.1. Introduction to Intel® FPGA IP Cores 3.2. Installing and Licensing Intel® FPGA IP Cores 3.3. Specifying the IP Core Parameters and Options 3.4. Generated File Structure 3.5. Simulating Intel® FPGA IP Cores 3.6. Upgrading the 1G/2.5G/5G/10G Multi-rate Ethernet PHY Intel® FPGA IP Core 3.7. Integrating Your IP Core in Your Design
3.2. Installing and Licensing Intel® FPGA IP Cores x
3.2.1. Intel® FPGA IP Evaluation Mode
3.7. Integrating Your IP Core in Your Design x
3.7.1. Adding the F-tile Reference and System PLL IP
4. Functional Description x
4.1. Clocking and Reset Sequence 4.2. Timing Constraints 4.3. Switching Operation Speed 4.4. IEEE 802.3 Clause 37 Auto-Negotiation 4.5. USXGMII
4.1. Clocking and Reset Sequence x
4.1.1. Clocking 4.1.2. Reset
6. Interface Signals x
6.1. Clock Signals 6.2. Reset Signals 6.3. Serial Interface Signals 6.4. Avalon® Memory-Mapped Interface Signals 6.5. XGMII Signals 6.6. Transceiver Status and Transceiver Clock Status Signals 6.7. Reconfiguration Signals 6.8. Operating Speed and Status Signals
7. Configuration Registers x
7.1. Register Map 7.2. PHY Registers
1. About the F-Tile 1G/2.5G/5G/10G Multi-rate Ethernet PHY Intel® FPGA IP User Guide
2. 1G/2.5G/5G/10G Multi-rate Ethernet PHY Intel® FPGA IP Overview
3. Getting Started
4. Functional Description
5. 1G/2.5G/5G/10G Multi-rate Ethernet PHY Intel® FPGA IP Parameters
6. Interface Signals
7. Configuration Registers
A. Document Revision History for the F-Tile 1G/2.5G/5G/10G Multi-rate Ethernet PHY Intel® FPGA IP User Guide

7.2. PHY Registers

Table 25.  PHY Registers
Address Name Description Access HW Reset Value
0x400 usxgmii_control Control Register — —
Bit [0]: USXGMII_ENA:
  • 0: None
  • 1: USXGMII mode
 RW 0
Bit [1]: USXGMII_AN_ENA is used when USXGMII_ENA is set to 1:
  • 0: Disables USXGMII Auto-Negotiation and manually configures the operating speed with the USXGMII_SPEED register.
  • 1: Enables USXGMII Auto-Negotiation, and automatically configures operating speed with link partner ability advertised during USXGMII Auto-Negotiation.
RW 1
Bit [4:2]: USXGMII_SPEED is the operating speed of the PHY in USXGMII mode and USE_USXGMII_AN is set to 0.
  • 3’b000: 10M
  • 3’b001: 100M
  • 3’b010: 1G
  • 3’b011: 10G
  • 3’b100: 2.5G
  • 3’b101: 5G
  • 3’b110: Reserved
  • 3’b111: Reserved
 RW 0
Bit [8:5]: Reserved — —
Bit [9]: RESTART_AUTO_NEGOTIATION

Write 1 to restart Auto-Negotiation sequence. The bit is cleared by hardware when Auto-Negotiation is restarted.

 RWC 0
Bit [31:10]: Reserved — —
0x401 usxgmii_status Status Register — —
Bit [1:0]: Reserved — —
Bit [2]: LINK_STATUS indicates link status for USXGMII all speeds
  • 1: Link is established
  • 0: Link synchronization is lost, a 0 is latched
 RO 0
Bit [4:3]: Reserved — —
Bit [5]: AUTO_NEGOTIATION_COMPLETE

A value of 1 indicates the Auto-Negotiation process is completed.

 RO 0
Bit [31:6]: Reserved — —
0x402:0x404 Reserved — — —
0x405 usxgmii_partner_ability Device abilities advertised to the link partner during Auto-Negotiation. — —
Bit [6:0]: Reserved — —
Bit [7]: EEE_CLOCK_STOP_CAPABILITY
Indicates whether energy efficient Ethernet (EEE) clock stop is supported.
  • 0: Not supported
  • 1: Supported
 RO 0
Bit [8]: EEE_CAPABILITY
Indicates whether EEE is supported.
  • 0: Not supported
  • 1: Supported
 RO 0
Bit [11:9]: SPEED
  • 3'b000: 10M
  • 3'b001: 100M
  • 3'b010: 1G
  • 3'b011: 10G
  • 3'b100: 2.5G
  • 3'b101: 5G
  • 3'b110: Reserved
  • 3'b111: Reserved
 RO 0
Bit [12]: DUPLEX
Indicates the duplex mode.
  • 0: Half duplex
  • 1: Full duplex
 RO 0
Bit [13]: Reserved — —
Bit [14]: ACKNOWLEDGE

A value of 1 indicates that the device has received three consecutive matching ability values from its link partner.

 RO 0
Bit [15]: LINK
Indicates the link status.
  • 0: Link down
  • 1: Link up
 RO 0
Bit [31:16]: Reserved — —
0x406:0x411 Reserved — — —
0x412 usxgmii_link_timer

Auto-Negotiation link timer. Sets the link timer value in bit [19:14] from 0 to 2 ms in approximately 0.05-ms steps. You must program the link timer to ensure that it matches the link timer value of the external NBASE-T PHY IP Core.

The reset value sets the link timer to approximately 1.6 ms.

Bits [13:0] are reserved and always set to 0.

 [19:14]: RW

[13:0]: RO

 [19:14]: 1F

[13:0]: 0
0x413:0x41F Reserved — — —
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