After the design is complete (placed and routed), VIV verifies that the required isolation is achieved in the design. VIV checks the placement and routing as follows:
- Tiles containing isolated logic must be separated by fence tiles. A fence tile cannot contain any logic (checked in IDF_VIV2-5) and cannot contain any routing (checked in IDF_VIV2-6) that could lead to an isolation violation with a single fault.
- Fence tiles cannot contain PIPs (checked in IDF_VIV2-6).
The six VIV DRCs are described in detail in the following sections.