6.2 Needless activation of interrupt MCAN_IR.MRAF
Attention: This erratum is applicable for CAN 2.0.
During frame reception while the MCAN is in Error Passive state and the Receive Error Counter has the value MCAN_ECR.REC = 127, it may happen that MCAN_IR.MRAF is set although there was no Message RAM access failure. If MCAN_IR.MRAF is enabled, an interrupt to the Host CPU is generated.
Work around
The Message RAM Access Failure interrupt routine needs to check whether MCAN_ECR.RP = ’1’ and MCAN_ECR.REC = 127. In this case, reset MCAN_IR.MRAF. No further action is required.