This flag reflects the status of the Remote Transmission Request bit in the CAN frame. In the case of
a receive buffer, it indicates the status of the received frame and supports the transmission of an
answering frame in software. In the case of a transmit buffer, this flag defines the setting of the RTR
bit to be sent.
What is the meaning of software? (Does freescale MSCAN not support automatic RTR answering?)
Thanks in advance.