Test Bench - 12.0 English

PG074 Aurora 64B/66B LogiCORE IP Product Guide

Document ID
PG074
Release Date
2022-10-19
Version
12.0 English

The Aurora 64B/66B core delivers a demonstration test bench for the example design. This chapter describes the Aurora 64B/66B test bench and its functionality. The test bench consist of the following modules:

Device Under Test (DUT)

Clock and reset generator

Status monitor

The Aurora 64B/66B test bench components can change based on the selected Aurora 64B/66B core configurations, but the basic functionality remains the same for all of the core configurations.

Figure 6-1: Aurora 64B/66B Test Bench for Duplex Configuration

X-Ref Target - Figure 6-1

pg074_duplex_demo_tb_x13546v.jpg

The Aurora 64B/66B test bench environment connects the Aurora 64B/66B duplex/TX/RX simplex core in loopback using a high-speed serial interface. This Figure shows the Aurora 64B/66B test bench for the duplex/TX/RX simplex configuration.

The test bench looks for the state of the channel, then the integrity of the user data, UFC data, and user-K blocks for a predetermined simulation time. The channel_up assertion message indicates that link training and channel bonding (in case of multi-lane designs) are successful. The counter is maintained in the FRAME_CHECK module to track the reception of erroneous data. The test bench flags an error when erroneous data is received.

Figure 6-2: Aurora 64B/66B Test Bench for Simplex Configuration

X-Ref Target - Figure 6-2

pg074_simplex_demo_tb_x13545v.jpg

The Aurora 64B/66B test bench environment connects the Aurora 64B/66B simplex core to the partner simplex Aurora 64B/66B core using the high-speed serial interface. This Figure shows the Aurora 64B/66B test bench for the simplex configuration where DUT1 is configured as TX-only simplex and DUT2 is configured as RX-only simplex.

The test bench looks for the state of the transmitter and receiver channels and then checks the integrity of the user data for a predetermined simulation time. The tx_channel_up and rx_channel_up assertion messages indicate that link training and channel bonding (in case of multi-lane designs) are successful.