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Altera Low Latency 40-Gbps Ethernet MAC and PHY MegaCore Function User Manual

Page 102

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Table 3-17: Low Latency 40-100GbE MAC and PHY IP Core Signals

Signal Name

Direction

Interface

clk_ref

Input

Clocks

clk_rx_recover

Output

Clocks
This signal is only available if

you turn on Enable SyncE in the

parameter editor.

reset_async

Input

Reset

tx_serial[3:0]

(40GbE and

CAUI–4)

tx_serial[9:0]

(100GbE)

Output

Transceiver PHY serial data

interface

rx_pcs_ready

Output

PHY status

tx_lanes_stable

Output

clk_txmac_in

Input

Clocks
Interface to external TX MAC

PLL
This signal is only available if

you turn on Enable external TX

MAC PLL in the parameter

editor.

clk_txmac

Output

Clocks
TX client interface

l_tx_data[*64-1:0]

Input

Avalon-ST TX client interface
Each IP core instance has

Avalon-ST TX and RX client

interfaces, or custom streaming

TX and RX client interfaces.

l_tx_empty[-1:0]

Input

l_tx_startofpacket

Input

l_tx_endofpacket

Input

l_tx_ready

Output

l_tx_valid

Input

l_tx_error

Input

din[*64-1:0]

Input

Custom streaming TX client

interface

din_sop[-1:0]

Input

UG-01172

2015.05.04

Low Latency 40-100GbE IP Core Signals

3-57

Functional Description

Altera Corporation

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