Altera POS-PHY Level 4 IP Core User Manual download pdf (Page 99)

December 2014 Altera Corporation POS-PHY Level 4 IP Core User Guide

6. Testbench

The testbench stimulates the inputs and checks the outputs of the interfaces of the

POS-PHY Level 4 IP core, demonstrating basic functionality.

The remainder of this section contains the following information about the testbench:

■ Receiver Testbench Description

■ Receiver Testbench Examples

■ Transmitter Testbench Description

Receiver Testbench Description

The testbench provided with the receiver variations of the POS-PHY Level 4 IP core

tests the following functions:

■ Using the Avalon-MM interface, program the calendar if Asymmetric Port

Support is turned on (refer to Appendix E)

■ Synchronization of the IP core with the SPI-4.2 training pattern

■ Data integrity from the SPI-4.2 interface through the IP core variation to the

Atlantic back-end interface

■ Ability to send data to multiple ports

■ Verifies that the IP core correctly drives backpressure on the SPI-4.2 interface (this

test can be turned on and off)

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Altera POS-PHY Level 4 IP Core User Manual Page 99