SPRUJ53A April 2024 – June 2024 TMS320F28P550SJ , TMS320F28P559SJ-Q1
For this combination the Tx buffers section in the Message RAM is separated in two parts:
If the MCAN_TXBC.TFQS field is empty (zero) - only Dedicated Tx buffers are used.
Tx prioritization:
Figure 27-17 shows Mixed Dedicated Tx buffers/Tx FIFO example.