SPRUJ17H March 2022 – October 2024 AM2631 , AM2631-Q1 , AM2632 , AM2632-Q1 , AM2634 , AM2634-Q1
As described in Overview, there are three different run-time diagnostics supported by the CCM-R5F. The CCM-R5F compares the core bus outputs of the primary and checker Cortex-R5F CPUs on the microcontroller and signals an error on any mismatch. This comparison is started 6 CPU clock cycles after the CPU comes out of reset to ensure that CPU output signals have propagated to a known value after reset. Once comparison is started, the CCM module continues to monitor the outputs of the two CPUs without any software intervention. If an error is detected by the CCM-R5F, a software handler is necessary to implement the appropriate response to the error dependent on application needs. The module principles of operation are applicable to both the CPU output compare as described above as well as to the VIM output compare.