SPRUIM2H May 2020 – October 2023 AM2431 , AM2432 , AM2434 , AM6411 , AM6412 , AM6421 , AM6422 , AM6441 , AM6442
The RX Rate Counter contains 8 independent rate monitors which determines if the rate of traffic of a given class exceedes the threshold set by MII_G_RT_RX_RATE_CFGm_PRUn[31-0] RX_RATE_CIR_IDLEm registers (where m = 0 to 7 and n = 0 or 1).
Each rate monitor has implemented PIR (Peak Information Rate) counter. The PIR counter in each monitor is a 37-bit internal counter where the monitor MII_G_RT_RX_RATE_CFGm_PRUn[31-0] RX_RATE_CIR_IDLEm is added on every clock and the frame size bytes less than 18 is subtracted at End Of Frame (EOF). If the count is negative at lookup time, the packet will be marked RED, else it can be GREEN.