CTRL=CONTROL_BITS_UNCHANG, DATA_A=DATA_BYTES_0_3_UNCHA, DATA_B=DATA_BYTES_4_7_UNCHA, CLRINTPND=INTPND_BIT_REMAINS_U, NEWDAT=NEWDAT_BIT_REMAINS_U, MASK=MASK_BITS_UNCHANGED_, ARB=ARBITRATION_BITS_UNC
Message interface command mask (read direction)
| DATA_B | Access data bytes 4-7 0 (DATA_BYTES_4_7_UNCHA): data bytes 4-7 unchanged. 1 (TRANSFER_DATA_BYTES_): Transfer data bytes 4-7 to IFx message buffer register. |
| DATA_A | Access data bytes 0-3 0 (DATA_BYTES_0_3_UNCHA): data bytes 0-3 unchanged. 1 (TRANSFER_DATA_BYTES_): Transfer data bytes 0-3 to IFx message buffer. |
| NEWDAT | Access new data bit 0 (NEWDAT_BIT_REMAINS_U): NEWDAT bit remains unchanged. A read access to a message object can be combined with the reset of the control bits INTPND and NEWDAT in IF1/2_MCTRL. The values of these bits transferred to the IFx Message Control Register always reflect the status before resetting these bits. 1 (CLEAR_NEWDAT_BIT_IN_): Clear NEWDAT bit in the message object. |
| CLRINTPND | Clear interrupt pending bit. 0 (INTPND_BIT_REMAINS_U): INTPND bit remains unchanged. 1 (CLEAR_INTPND_BIT_IN_): Clear INTPND bit in the message object. |
| CTRL | Access control bits 0 (CONTROL_BITS_UNCHANG): Control bits unchanged. 1 (TRANSFER_CONTROL_BIT): Transfer control bits to IFx message buffer. |
| ARB | Access arbitration bits 0 (ARBITRATION_BITS_UNC): Arbitration bits unchanged. 1 (TRANSFER_IDENTIFIER): Transfer Identifier, DIR, XTD, and MSGVAL bits to IFx message buffer register. |
| MASK | Access mask bits 0 (MASK_BITS_UNCHANGED_): Mask bits unchanged. 1 (TRANSFER_IDENTIFIER_): Transfer Identifier MASK + MDIR + MXTD to IFx message buffer register. |
| WR_RD | Read transfer Transfer data from the message object addressed by the command request register to the selected message buffer registers CANIFn_CMDREQ. |
| RESERVED | reserved |