Changes

* Two independent CAN bus controllers implement CAN V2.0B at rate of up to 1Mbps each

* Isolated PHY with rated isolation voltage of 2.5 kV RMS

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# FM-SER is classified as DTE (Data Terminal Equipment) in terms of RS232 standard definition.

# RS485 half-duplex mode requires special HW/SW adaptation

=== Block Diagram ===