Transmit status register
| TM0TCF | Transmit mailbox 0 transmission complete flag |
| TM0TSF | Transmit mailbox 0 transmission success flag |
| TM0ALF | Transmit mailbox 0 arbitration lost flag |
| TM0TEF | Transmit mailbox 0 transmission error flag |
| TM0CT | Transmit mailbox 0 cancel transmission |
| TM1TCF | Transmit mailbox 1 transmission complete flag |
| TM1TSF | Transmit mailbox 1 transmission success flag |
| TM1ALF | Transmit mailbox 1 arbitration lost flag |
| TM1TEF | Transmit mailbox 1 transmission error flag |
| TM1CT | Transmit mailbox 1 cancel transmission |
| TM2TCF | transmit mailbox 2 transmission complete flag |
| TM2TSF | Transmit mailbox 2 transmission success flag |
| TM2ALF | Transmit mailbox 2 arbitration lost flag |
| TM2TEF | Transmit mailbox 2 transmission error flag |
| TM2CT | Transmit mailbox 2 cancel transmission |
| TMNR | Transmit Mailbox number record |
| TM0EF | Transmit mailbox 0 empty flag |
| TM1EF | Transmit mailbox 1 empty flag |
| TM2EF | Transmit mailbox 2 empty flag |
| TM0LPF | Transmit mailbox 0 lowest priority flag |
| TM1LPF | Transmit mailbox 1 lowest priority flag |
| TM2LPF | Transmit mailbox 2 lowest priority flag |