/*
     * CAN ID parsing
     */
    const uint32_t id = can_frame.id & CanFrame::MaskExtID;
    transfer_id_       = uint8_t(bitunpack<0, 3>(id));
    last_frame_        = bitunpack<3, 1>(id) != 0;
    // TT-specific fields skipped
    transfer_priority_ = TransferPriority(bitunpack<27, 2>(id));

    if (transfer_priority_ == TransferPriorityService)
    {
        frame_index_   = uint_fast8_t(bitunpack<4, 6>(id));
        src_node_id_   = uint8_t(bitunpack<10, 7>(id));
        data_type_id_  = uint16_t(bitunpack<17, 9>(id));
        // RequestNotResponse
        transfer_type_ = (bitunpack<26, 1>(id) == 1U) ? TransferTypeServiceRequest : TransferTypeServiceResponse;
    }
    else
    {
        frame_index_   = uint_fast8_t(bitunpack<4, 4>(id));
        // BroadcastNotUnicast
        transfer_type_ = (bitunpack<8, 1>(id) == 1U) ? TransferTypeMessageBroadcast : TransferTypeMessageUnicast;
        src_node_id_   = uint8_t(bitunpack<9, 7>(id));
        data_type_id_  = uint16_t(bitunpack<16, 11>(id));
    }