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DP83867IR: 10/100BASE-T Ethernet bus on backplane without hub/swithc

Part Number: DP83867IR

I would like to avoid using a Hub or a Switch in a 10/100BASE-T ethernet bus. I propose to use TX_CNTRL from  master to each one of the slaves. This control signal will enable PHY only of desired module, so, I will avoid any conflict of different modules accessing to the bus.

Is my approach correct ?

 ( I wanted to attach an slide showing the proposed architecture, but I couldn't attach it)