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DP83TC814R-Q1: DP83TC814R-Q1

Meghna

Prodigy 165 points

Part Number: DP83TC814R-Q1

Tool/software:

DP83TC814R-Q1

Hello, We are using DP83TC814R-Q1 in RMII slave mode and interfacing it with STM32H743BIT6, we are using 50MHz separate clock for DP83TC814R & we are using external 50MHz clock for Microcontroller also, but here we need your support because both clocks need to be synchronised, how do we take care of connection? Please find the attached our schematics for reference,

Thanks in advance,

0 Meghna 4 months ago

Prodigy 165 points

0 Drew Miller1 4 months ago in reply to Meghna

TI__Mastermind 37293 points

Hi Nayan,

Can you use the same clock for both devices?

Thanks,

Drew

0 Meghna 4 months ago in reply to Drew Miller1

Prodigy 165 points

Thats my doubt, if we use the same clock how will be the connection,

If we dont use how will be the connection?

What about synchronisation?

0 Drew Miller1 4 months ago in reply to Meghna

TI__Mastermind 37293 points

Hi Nayan,

You can use a clock buffer to provide clock to both devices. Please ensure clock trace length is similar for both devices to avoid clock skew.

Thanks,

Drew

0 Meghna 4 months ago in reply to Drew Miller1

Prodigy 165 points

Is the schematic ok?

0 Drew Miller1 4 months ago in reply to Meghna

TI__Mastermind 37293 points

Hi Meghna,

Do you have an updated schematic with shared clock? Also is it possible to share pdf?

Thanks,

Drew

0 Meghna 3 months ago in reply to Drew Miller1

Prodigy 165 points

We are using DP83TC814R in RMII slave mode, is the schematic design ok or any comments that is to be updated?

Thanks in advance

0 Drew Miller1 3 months ago in reply to Meghna

TI__Mastermind 37293 points

Hi Meghna,

We will review and get back to you shortly.

Thanks,

Drew