I/O Signals - 3.0 English

AXI Ethernet Lite MAC LogiCORE IP Product Guide (PG135)

Document ID
PG135
Release Date
2021-11-02
Version
3.0 English

The AXI Ethernet Lite MAC I/O signals are listed and described in Table:  I/O Signal Descriptions .

Table 2-5: I/O Signal Descriptions

Signal Name

Interface

I/O

Initial
State

Description

System Signals

s_axi_aclk

System

I

-

AXI4 clock (Processor clock domain)

s_axi_aresetn

System

I

-

AXI4 reset, active-Low

ip2intc_irpt

System

O

0

Edge rising interrupt

AXI4 Write Address Channel Signals

s_axi*

S_AXI

-

-

See Appendix A of the Vivado AXI Reference Guide (UG1037) [Ref 2] for the description of AXI4 Signals.

AXI Ethernet Lite MAC Interface Signals

phy_tx_clk

PHY

I

-

Ethernet transmit clock input from PHY

phy_rx_clk

PHY

I

-

Ethernet receive clock input from PHY

phy_rx_data[3:0]

PHY

I

-

Ethernet receive data. Input from Ethernet PHY.

phy_tx_data[3:0]

PHY

O

0

Ethernet transmit data. Output to Ethernet PHY.

phy_dv

PHY

I

-

Ethernet receive data valid. Input from Ethernet PHY.

phy_rx_er

PHY

I

-

Ethernet receive error. Input from Ethernet PHY.

phy_tx_en

PHY

O

0

Ethernet transmit enable. Output to Ethernet PHY.

phy_crs

PHY

I

-

Ethernet carrier sense input from Ethernet PHY

phy_col

PHY

I

-

Ethernet collision input from Ethernet PHY

phy_rst_n

PHY

O

-

PHY reset, active-Low

phy_mdc (1)

PHY

O

0

Ethernet to PHY MII Management clock

phy_mdio_i (1)

PHY

I

-

PHY MDIO data input from 3-state buffer

phy_mdio_o (1)

PHY

O

0

PHY MDIO data output to 3-state buffer

phy_mdio_t (1)

PHY

O

0

PHY MDIO data output enable to 3-state buffer

Notes:

1. This port is unused when Enable MII Management Module is disabled in the Vivado IDE. Output has default assignment.

2. The signal phy_mdio is a bidirectional port. The insertion of the 3-state buffer is automatically done by the Vivado IP integrator tool. You do not need to connect phy_mdio_i , phy_mdio_o and phy_mdio_t signals manually when using IP in IP integrator.