Copyright

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1. Use a pad directly connected to the closest CKG (these pads are suffixed by _CLK). Either the user instantiates a PLL or a WFG in the design or the tool instantiates automatically a WFG in bypass mode.

2. Use a common pad and use a buffer NX_BD in global_lowskew mode.

Please have a look at Training Package Application Note Design/LowskewManagement project.

Memory initialization

There are several ways to initialize a memory (attribute, generic, python method).

It is recommended to rather use python method addMemoryInitialization described in Nxmap user manual as it is compliant with inferred and instantiated memories.

Please have a look at Training Package Application Note Init/Ram project.

Memory Inference

In order to infer a memory instead of instantiating a NanoXplore primitive (advantage is the user can choose with the same RTL code to map this memory in RF, RAM, RAM_ECC, … thanks to NXpython constraints), it is recommended to follow TrainingPackage Design/MemInfer examples providing inference for ROM, SRAM, DPRAM with and without ECC.

Please have a look at Training Package Application Note Design/MemInfer project.

Hierarchy

It is recommended to divide the design in well sized modules depending on the function they are responsible for.

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