Message Buffer 55 CS Register
| TIME_STAMP | Free-Running Counter Time stamp. This 16-bit field is a copy of the Free-Running Timer, captured for Tx and Rx frames at the time when the beginning of the Identifier field appears on the CAN bus. |
| DLC | Length of the data to be stored/transmitted. |
| RTR | Remote Transmission Request. One/zero for remote/data frame. |
| IDE | ID Extended. One/zero for extended/standard format frame. |
| SRR | Substitute Remote Request. Contains a fixed recessive bit. |
| CODE | Reserved |