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CCM_ENET3_REF_CLK vs CCM_ENET_REF_CLK3 vs CCM_ENET_PHY_REF_CLK

Question asked by Cheng Shi on Jun 20, 2018
Latest reply on Jun 21, 2018 by Cheng Shi

Hi, 

In Table 5-10 of iMX7D RM, there is external signal CCM_ENET3_REF_CLK with following mux-mode:

ENET3

Check GPIO1_IO01 pad muxmode, there is:

ALT2_CCM_ENET_REF_CLK3 — Select mux mode: ALT2 mux port: ENET_REF_CLK3 of instance: CCM

 

and GPIO1_IO09 pad muxmode:

ALT2_CCM_ENET_PHY_REF_CLK — Select mux mode: ALT2 mux port: ENET_PHY_REF_CLK of instance: CCM

 

and I2C2_SDA pad muxmode:

ALT4_CCM_ENET_PHY_REF_CLK — Select mux mode: ALT4 mux port: ENET_PHY_REF_CLK of instance: CCM

 

As my understanding, three different signal names represent the same signal, coresponding to IMX7D_ENET_PHY_REF_ROOT_DIV in DTS file. Is it right?

 

BR

Cheng Shi

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