ColdFire V3 Test Strategies
lV2 DMA-based testing Big interface
•Design dependent
•No possible to test the SRAM completely
•Path delay couldn’t be performed completely
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lV3 MemoryBIST
•Big area (4%)
•More benefits than drawbacks
•Core encapsulation
•Retention test mechanism
•Scan testing of the I/O (Flow-Through RAMs)
Benefits of the MemoryBIST are memory portability, reduces time-to-market, reduces routing requirements