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mikem7
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Registered: ‎03-15-2018

What If Redundant Bit Is Not Set in the eFUSE Control Register?

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What happens if only one bit is set in the eFUSE Control Register (FUSE_CNTL)? 

I am looking at User Guide 380, Spartan-6 FPGA Configuration.

 

CNTL Security is Bits 8 and 12, what happens if only one of these bits are set?

Key Security is Bits 10 and 14, what happens if only one of these bits are set?

 

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iguo
Xilinx Employee
Xilinx Employee
1,155 Views
Registered: ‎08-10-2008
You should always program the primary and redundant bits. If not following this recommendation, the behavior of eFUSE and related function cannot be guaranteed.

Thanks,
Ivy
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iguo
Xilinx Employee
Xilinx Employee
1,156 Views
Registered: ‎08-10-2008
You should always program the primary and redundant bits. If not following this recommendation, the behavior of eFUSE and related function cannot be guaranteed.

Thanks,
Ivy
------------------------------------------------------------------------------------------------------------
Don't forget to reply, kudo, and accept as solution.
---------------------------------------------------------------------------------------------------------

View solution in original post

mikem7
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Registered: ‎03-15-2018

Hi Ivy,  Thank you for your response!  This is what I suspected, but I wanted to confirm.

 

Thanks,

Mike

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