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Hi,
I have customers using TMS320F28388D, now some questions, please help to answer.
1. The customer uses F28388+ DP83826, which is connected through the MII port. Now it is not clear on the hardware pin connection. It is necessary to use the 28 and 29 pins of DP83826, but there is no corresponding pin connected with the 28 and 29 pins in the actual F28388?
Do you have detailed reference documentation?
Many thanks~
Hi,
Pins 28 and 29 of DP83826 would be used for PHY address setting and should therefore have external pull resistors on them, but they wouldn't need to connect to the C2000 device. you can see TMDSCNCD28P65X schematic linked below for DP83826 reference circuit.
https://www.ti.com/lit/pdf/sprr478
Also see: https://www.ti.com/lit/pdf/snla344
Best,
Kevin