MBIST DONE & GO failing conditions

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vipul982

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Hi,

I want to assess the following condition:
If an MBIST controller and memory is intended to run at a functional frequency say 100MHz and a testbench is also generated to run at same frequency, but the frequency that is recieved is 20MHz. How will the failure look like in simulation?
1. will there be a DONE failure indicating a test did not complete?
2. Will the test run and indicate a DONE & GO failure?

Thanks,
Vip
 

1. DONE signal : Test time not enough. GO bit will not compare.
2. GO/GO_ID signal :Should the failure on the controller / mem_inf.

Tiep Ngo
 

i think the bset way is to do simulation on your design to check the result rrather than guess
 

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