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AR# 47237

LogiCORE CPRI - What is CDC FIFO Depth?

Description

What is CDC FIFO depth for CPRI IP?

Solution

This depends on the CPRI configuration. If CPRI is used as a master core, the CDC FIFO uses block RAM. The depth is 128 words.

For a CPRI slave core, the CDC FIFO uses distribute memory which has a depth of 16 words. The word size depends on the datapath width.

It is not configurable for the CPRI IP version prior to v8.5.

AR# 47237
Date Created 04/12/2012
Last Updated 01/20/2016
Status Active
Type General Article
IP
  • CPRI