AR# 53584

Spartan-6 - How long after loading a command on the ICAP can CE be deasserted?

Description

The ICAP control logic I use follows the User Guide recommendations, but the command loaded does not take effect.

What is the issue here? How long after loading a command on the ICAP can CE be deasserted?

Solution

After loading a command on the ICAP interface the CE must be asserted for two clock cycles. If CE is deasserted within two clock cycles of the command, the command might not execute.

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AR# 53584
Date	12/20/2012
Status	Active
Type	General Article
Devices	Spartan-6

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