DRV8889-Q1: Info regarding REV_ID bits in the CTRL8

Tool/software:

Hello gents,

I am using a DRV889A-Q1 stepper motor driver. The value read for the REV_ID bits in the CTRL8 register is 3. Could you please explain what this value represents?  In the datasheet, I only saw values of 0, 1, or 2 for silicon revision identification.

Thanks a lot!