Triple-Speed Ethernet Intel® FPGA IP User Guide

ID 683402
Date 5/30/2022
Public
Document Table of Contents

6.1.1.4. MAC Status Signals

The MAC status signals which allow you to set the transfer mode of the Ethernet-side interface.
Table 59.  MAC Status Signals
Name I/O Description
eth_mode O Ethernet mode. This signal is set to 1 when the MAC function is configured to operate at 1000 Mbps; set to 0 when it is configured to operate at 10/100 Mbps.
ena_10 O 10 Mbps enable. This signal is set to 1 to indicate that the PHY interface should operate at 10 Mbps. Valid only when the eth_mode signal is set to 0.
set_1000 I Gigabit mode selection. Can be driven to 1 by an external device, for example a PHY device, to set the MAC function to operate in gigabit. When set to 0, the MAC is set to operate in 10/100 Mbps. This signal is ignored when the ETH_SPEED bit in the command_config register is set to 1.
set_10 I 10 Mbps selection. Can be driven to 1 by an external device, for example a PHY device, to indicate that the MAC function is connected to a 10-Mbps PHY device. When set to 0, the MAC function is set to operate in 100-Mbps or gigabit mode. This signal is ignored when the ETH_SPEED or ENA_10 bit in the command_config register is set to 1. The ENA_10 bit has a higher priority than this signal.

Did you find the information on this page useful?

Characters remaining:

Feedback Message