RECREQ=0, TRMREQ=0, ONESHOT=0, TRMABT=0, SENTDATA=0, TRMACTIVE=0
Message Control Register for Transmit
| SENTDATA | Transmission Complete Flag 0 (0): Transmission is not completed 1 (1): Transmission is completed |
| TRMACTIVE | Transmission-in-Progress Status Flag (Transmit mailbox setting enabled) 0 (0): Transmission is pending or transmission is not requested 1 (1): From acceptance of transmission request to completion of transmission, or error/arbitration-lost |
| TRMABT | Transmission Abort Complete Flag (Transmit mailbox setting enabled) 0 (0): Transmission has started, transmission abort failed because transmission is completed, or transmission abort is not requested 1 (1): Transmission abort is completed |
| ONESHOT | One-Shot Enable 0 (0): One-shot reception or one-shot transmission disabled 1 (1): One-shot reception or one-shot transmission enabled |
| RECREQ | Receive Mailbox Request 0 (0): Not configured for reception 1 (1): Configured for reception |
| TRMREQ | Transmit Mailbox Request 0 (0): Not configured for transmission 1 (1): Configured for transmission |