Categories October Surprise 2024 38.5.11 Remote Transmit Request (RTR) – Microchip Technology Post author By Post date July 13, 2026 Remote frames are only specified for CAN 2.0 frames; they are not supported in CAN FD frames. The filter that is configured to respond to a Remote Transmit Request will point to a FIFO that is configured for transmission and RTREN has to be set.