2.4 DDR_OUT and I/O-Reg Functional Errata due to a Software Bug

This Errata is applicable only if you have created or updated the design using Libero SoC v11.1 SP1 or v11.1 SP2.

The corresponding I/O does not function properly in the silicon due to the wrong software implementation of the I/O macro,if you have one of the following in the design:

  • If you use DDR_OUT macro in the design
  • If you combine an output or output enable register with an I/O using the PDC command, set_io <portName>-register yes

Solution:

Both Errata are fixed in Libero SoC v11.1 SP3. Migrate the design to Libero SoC v11.1 SP3 or a newer version, and re-run Compile and Layout.