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AR# 55788

14.5 - AXI4-Stream FIFO v3.00.a - What are the correct TX/RX FIFO programmable threshold default values?

Description

 What are the correct TX/RX FIFO programmable threshold default values?  The MPD file and documentation do not match.

Solution

The default settings of those parameters in the MPD are as below:

C_TX_FIFO_PF_THRESHOLD = 10
C_TX_FIFO_PE_THRESHOLD = 7
C_RX_FIFO_PF_THRESHOLD = 10
C_RX_FIFO_PE_THRESHOLD = 7

The description in PG080 is different. PG080 describes the default settings as below.  The values found in PG080 (below) are correct.

C_TX_FIFO_PF_THRESHOLD = 510
C_TX_FIFO_PE_THRESHOLD = 2
C_RX_FIFO_PF_THRESHOLD = 510
C_TX_FIFO_PE_THRESHOLD = 2
AR# 55788
Date Created 04/29/2013
Last Updated 04/30/2013
Status Active
Type General Article
Tools
  • EDK
IP
  • AXI Streaming FIFO