H-tile Ethernet Hard IP User Guide: For Intel® Stratix® 10 Devices

ID 683430
Date 2/16/2022
Document Table of Contents

B.1.4. Auto-Negotiation Config Register 2

Provides the following configuration options:
  • Reset Auto-negotiation
  • Restart Auto-negotiation TXSM
  • Auto-negotiation Next Page

Offset: 0xC1

Access: RW

Auto-Negotiation Config Register 2 Fields

Bit Name Description Access Reset
8 an_next_page AN Next Page

1: Indicate new next page info to send. The data in the XNP TX registers

0: No next pages to send, send TX Null pages

RW 0x0
4 restart_an_txsm Restart AN TXSM

1: Restart the AN Transmit State Machine

0: Normal operation

Maps to state variable mr_restart_negotiation in IEEE 802.3 CL 73.10.1.

0 reset_an Reset all AN state machines

1: Reset all the AN state machines

0: Normal operation

Maps to state variable mr_main_reset in IEEE 802.3 CL 73.10.1
RW 0x0

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