SPRUIM2H May 2020 – October 2023 AM2431 , AM2432 , AM2434 , AM6411 , AM6412 , AM6421 , AM6422 , AM6441 , AM6442
To initiate clock stop procedure, CLKSTOP_REQ input needs to be asserted and stays asserted until the statistics engine acknowledges the clock stop request, which indicates that it is safe to turn off the clock (CLKSTOP_ACK output is 1). After CLKSTOP_REQ is asserted, no additional packet or configuration access should be sent to the stats engine. Stats engine will ensure that all pending stats bumps requests have been processed (all FIFOs are empty), before issuing CLKSTOP_ACK. In addition, to prevent timer interrupt, the timer is paused when CLKSTOP_REQ = 1.