DP83867CS: DP83867CSRGZ SCH REVIEW

Hi Rajat,

Please refer to this schematic review checklist to review the pin layout (see "Pin Wise Checklist" tab):

DP83867_Schematic_Design_Review_Checklist.xls

I am able to give further feedback if you have questions beyond the recommendations in this checklist.

Thank you,

Evan

Hi Evan,

Thanks for sharing the checklist ,I have 2 question on shared checklist-

Q1- What will be the RGMII TX and RX  clock skew in case of MAC Interface is SGMII?Is there any signigicance of TX and RX Clock skew in SGMII Mode?

Q2-RX_CTRL Pin suggested floating in PIN Wise checklist Tab then How Autoneg Feature will be supported in SGMII mode?

Note- We are using PHY in SGMII Mode

Many Thanks

Rajat

Hi Rajat,

1) TX and RX clock skew is not relevant to SGMII mode 

2) RX_CTRL can be strapped to mode 3 if autoneg is desired in SGMII

Thank you,

Evan

Hi Evan,

1)So there is no no need to connect strap Pin (GPIO0,GPIO1,LED2) to Pull up and Pull down in SGMII Mode?Please confirm 

2)Okay, I will update it.

Many Thanks

Rajat

Hi Rajat,

Rajat Singh said:

1)So there is no no need to connect strap Pin (GPIO0,GPIO1,LED2) to Pull up and Pull down in SGMII Mode?Please confirm 

Correct, these pins can be left at default strap values for SGMII.

Thank you,

Evan 

Hi Evan,

How to make it default values for SGMII?

Thanks

Rajat

Hi Evan,

What is the worst case current number in SGMII Mode for below 2 Powers

1,VDD1P0

2.VDDA2P5

3.VDDIO-1.8V

Many Thanks

Rajat

By not connecting a PU/PD to the pin, it will strap into the default value [00].

Thanks,

Evan