DP83869HM: Question regarding internal pull-down resistors

Hi Woohyun,

Are your RX_D2 and RX_D3 pins currently connected to the MAC?

Best regards,

Greg

Hello, Greg.

The pin you mentioned is connected to the AP. Please refer to the image for details.(Please refer to the circuit diagram in the PDF file I uploaded.)

1. datasheet VDD is displayed during the daysheet power-on timing; should 1.1V and 2.5V be turned on simultaneously?

2. When the RESET_N input (U9_43PIN) rises, the ETH_RX_CTRL PIN (R195 open) is 0V; why isn't it operating normally?

3. The reset time after the VDDA2P5 input is less than 100ms; is this okay?

Hi Woohyun,

I will review this and will get back to you this week. Thanks!

Best regards,

Greg