Do we need differential routing TX and RX in Ethernet RMII MAC to MAC Connection

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newbie_hs

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I am implementing an Ethernet mac to mac connection between SAMA5D27C-D1G-CU and FS32K148UJT0VLQT micro-controller.
In MAC to MAC communication PHY TX is connected to RX of MAC and vice versa as shown below.

In Ethernet,the RX and TX are differential signals with characteristic impedance of 100 Ohm.
My Question is ,Do we need to follow differential routing for RX and TX in this MAC to MAC communication?
My schematic is given below.
 

Solution
The signals are single ended and respectively use single traces. They aren't intended to span long distance.
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The signals are single ended and respectively use single traces. They aren't intended to span long distance.
 
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Solution
No, You don't need differential traces/signals.
Just keep in mind:
- keep the traces length same RXD0...RXD3 and RXCLK
- Keep the TX traces same TXD0...TXD3 and TXCLK
- Calculate the signal impedances and check them with the datasheet.
 

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