Addition of 'not sleeping pin'
Created by: Silabs-ArjanB
The environment of RI5CY cannot judge whether RI5CY still requires its clock (or whether it is for example blocked in a WFI). Addition of a ‘not sleeping’ pin can provide this information. At chip level this information can be used for power management. This feature request amounts to simply making the already existing clock_en signal in riscv_core.sv available on a newly added cpu_sleeping_n pin (see attached pdf).
Note: This feature has also been requested for Ibex (https://github.com/lowRISC/ibex/issues/258)