TMUXHS4212: How to deal with clock signal on PCIe?

Hideki Hayashi1

Expert 8390 points

Part Number: TMUXHS4212
Other Parts Discussed in Thread: DS160PR412, TMUXHS4412, LMK00334, DS160PR412-421EVM

Hi expert,

Our customer is considering TMUXHS4212 for PCIe MUX (2in1out).

Could you let me know how to deal with all of other pins on PCIe (CLKREQ#, WAKE#, PERST#)?

Are there any reference design?

Best regards,

Hideki

over 3 years ago

0 Brian Zhou over 3 years ago

TI__Guru*** 146095 points

Pls check DS160PR412-421EVM Evaluation Module, DS160PR412 can be replace by TMUXHS4412 mux.

Regard's

Brian

0 Hideki Hayashi1 over 3 years ago in reply to Brian Zhou

TI__Expert 8390 points

Hi Brian,

I can see LMK00334 as a clock buffer on the DS160PR412-421EVM. Can customer use TMUXHS4212 to switch REFCLK? Or should reference clock be always supplied from clock source?

Best regards,

Hideki

+1 Brian Zhou over 3 years ago in reply to Hideki Hayashi1

TI__Guru*** 146095 points

Hideki:

Suggest reference clock be always supplied from clock source.

Regards

brian

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TMUXHS4212: How to deal with clock signal on PCIe?