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AM4376: CPSW flow control

Part Number: AM4376

Hi,

I've previously asked the CPSW flow control question in the thread below, but I haven't got an answer yet.
Would anyone please follow up?

Q1: There are CPPI port flow control and Ethernet port flow control. What is the specific difference?
In particular, I don't know what CPPI port flow control does.


Q2: What is P1_FLOW_EN and P2_FLOW_EN in the CPSW_SS_FLOW_CTRL register used for?
What is the difference from RX_FLOW_EN of CPSW_SL_MACCTRL register?

Best Regards,
H.U