50g interlaken ip core testbench, 50g interlaken ip core testbench -1 – Altera 50G Interlaken MegaCore Function User Manual
Page 68
50G Interlaken IP Core Testbench
7
2015.05.04
UG-01140
When you generate an 50G Interlaken IP core variation with Verilog HDLsynthesis and simulation
models, the software generates an example design and testbench to simulate your 50G Interlaken IP core
variation. The testbench provides system and PLL reference clocks and connects the TX output pins of the
IP core to its RX input pins, implementing physical layer loopback.
In simulation, the testbench generates packets on the IP core TX user data transfer interface. The IP core
sends these packets on the loopback Interlaken link. After the IP core receives the packets on the loopback
Interlaken link, it processes the Interlaken packets and transmits them on the RX user data transfer
interface. The testbench checks that the packets it receives on the IP core RX user data transfer interface
are consistent with the packets sent in.
Figure 7-1: 50G Interlaken IP Core Testbench Block Diagram
The TX PLL is present only in the example designs for Arria 10 variations.
PLL
Loopback
TX Lanes
RX Lanes
Example Design
Top Testbench
Packet
Generator
Control & Status
Registers
Packet
Checker
50G Interlaken
MegaCore
Function
System Clock
Generator
PLL Reference
Clock Generator
TX PLL
©
2015 Altera Corporation. All rights reserved. ALTERA, ARRIA, CYCLONE, ENPIRION, MAX, MEGACORE, NIOS, QUARTUS and STRATIX words and logos are
trademarks of Altera Corporation and registered in the U.S. Patent and Trademark Office and in other countries. All other words and logos identified as
trademarks or service marks are the property of their respective holders as described at
www.altera.com/common/legal.html
. Altera warrants performance
of its semiconductor products to current specifications in accordance with Altera's standard warranty, but reserves the right to make changes to any
products and services at any time without notice. Altera assumes no responsibility or liability arising out of the application or use of any information,
product, or service described herein except as expressly agreed to in writing by Altera. Altera customers are advised to obtain the latest version of device
specifications before relying on any published information and before placing orders for products or services.
www.altera.com
101 Innovation Drive, San Jose, CA 95134