CAN Transmit Request Registers 1
| TXRQST1 | Bit0 of TREQR1 |
| TXRQST2 | Bit1 of TREQR1 |
| TXRQST3 | Bit2 of TREQR1 |
| TXRQST4 | Bit3 of TREQR1 |
| TXRQST5 | Bit4 of TREQR1 |
| TXRQST6 | Bit5 of TREQR1 |
| TXRQST7 | Bit6 of TREQR1 |
| TXRQST8 | Bit7 of TREQR1 |
| TXRQST9 | Bit8 of TREQR1 |
| TXRQST10 | Bit9 of TREQR1 |
| TXRQST11 | Bit10 of TREQR1 |
| TXRQST12 | Bit11 of TREQR1 |
| TXRQST13 | Bit12 of TREQR1 |
| TXRQST14 | Bit13 of TREQR1 |
| TXRQST15 | Bit14 of TREQR1 |
| TXRQST16 | Bit15 of TREQR1 |