AM5726: Two-channel PHY application consultation and schematic review

Adrian Liu

Part Number: AM5726

Hi Team,

Customer want to apply two PHY in AM5726, but these two PHYs share MDC and MDIO.

1. So my question is can these two PHYs be used at the same time? How to distinguish and call these two PHY interfaces in software?

2. Could you help review the schematic of 2 PHYs design provided by customer as below:

Adrian

7 months ago

0 Adrian Liu 7 months ago

TI__Intellectual 1120 points

Hi Team,

Could you help check the above question?

Adrian

0 Robert Eschler 7 months ago in reply to Adrian Liu

TI__Mastermind 44600 points

Yes the MDIO bus does support communication with multiple PHYs. Each PHY has a unique address. When using multiple of the same PHYs, typically there is a strapping option/pin to set the address of each.

0 Adrian Liu 7 months ago in reply to Robert Eschler

TI__Intellectual 1120 points

Hi Robert,

Thanks for your reply.

Could you help check the schematic provided from customer as well?

Adrian

+1 Robert Eschler 7 months ago in reply to Adrian Liu

TI__Mastermind 44600 points

Looks Ok

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AM5726: Two-channel PHY application consultation and schematic review