I plan to implement an RS485 Bus with multiple masters using an RX113. For CSMA I need
Does the RX family have support to do this both jobs in hardware? In the hardware manual I can see a bus collision detect, but only for the extended SCI mode and only for the break field.
And yes, I had a look to CAN bus and no, CAN is not an option. I have to transmit small and bigger packets and the same messages from different masters. Some times as p2p and sometimes as broadcast to all or as broadcast to a group of participants (like Ethernet vLan). Furhtermore I need voltage protection of the bus up to 60 V. RS485 have this feature.
And no, I don't want buy a Profibus ASIC :-)
Thanks for all help,
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