Type: Answers

Type: Errata

Area: EMIF

Area: Intellectual Property



IP Generation Fails When Both Efficiency Monitor and Ping Pong PHY Enabled

Description

This problem affects DDR2, DDR3, LPDDR2, RLDRAM II and RLDRAM 3 products.

IP generation fails when you attempt to instantiate your UniPHY-based external memory interface IP with both the Efficiency Monitor and Protocol Checker and Ping Pong PHY enabled.

Workaround/Fix

The workaround for this issue is as follows:

  1. In Qsys, manually instantiate your UniPHY-based external memory interface IP with Ping Pong PHY enabled and the Efficiency Monitor and Protocol Checker disabled.
  2. Instantiate two copies of the Efficiency Monitor and Protocol Checker and connect them to the avl_c0 and avl_c1 interfaces of the UniPHY IP.

This issue will be fixed in a future version.