2. Support
  3. AR# 4635: SYNPLIFY: Why is an IBUF inferred between the BUFGDLL/IBUFG and clock-pad?
  4. AR# 46359: FIFO Generator - Built-In FIFO is not supported in Spartan architectures, only in Virtex architectures

AR# 46359

FIFO Generator - Built-In FIFO is not supported in Spartan architectures, only in Virtex architectures

Description

When using Spartan-6 architectures, it is not possible to use Built-In FIFO implementation in the FIFO Generator GUI.

The feature is grayed out.

This option is available for all Virtex families but not for Spartan-6, why is this the case?

Solution

This is because Spartan-6 does not have a built-in FIFO primitive. 

It is only available on Virtex-4, Virtex-5 and Virtex-6.

This information is contained in the Datasheet for the core.

AR# 46359
Date 09/10/2014
Status Active
Type General Article
Devices
IP