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.

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AR# 46359
Date	09/10/2014
Status	Active
Type	General Article
Devices	Spartan-6 LX Spartan-6 LXT Spartan-6Q
IP	FIFO Generator

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