DP83848I: Link Loss Timer

Takashi Onawa

Part Number: DP83848I

Hi Team,

My customer wants to know reaction time of DP83848I under link loss condition.

Could you tell me Link loss timer set count?

I can not find the description of the information in the datasheet and my customer expect it should be less than 15us.

Regards,

Takashi Onawa

over 3 years ago

0 Vikram Sharma over 3 years ago

TI__Genius 16025 points

Hello Takashi,

15us looks very stringent. But I am still checking to see the possible value.

Regards,

Vikram

0 Takashi Onawa over 3 years ago in reply to Vikram Sharma

TI__Genius 13200 points

Hi Vikram-san,

Can I have any update on this? My customer is waiting.

Regards,

Takashi Onawa

0 Vikram Sharma over 3 years ago in reply to Takashi Onawa

TI__Genius 16025 points

Hello Takashi-san,

Link loss time is 250us in normal case and I am looking for a possible register setting to make it < 15us.Are you looking for EtherCat application?

Regards,

Vikram

0 Vikram Sharma over 3 years ago in reply to Vikram Sharma

TI__Genius 16025 points

Hello Takashi-san,

I checked and discussed internally but could not find any register setting to configure the timer to < 15us. There can be some hardware level work-around by detecting RX_ER to meet this timing requirement of 15us. Is this still open with customer?

Regards,

Vikram

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DP83848I: Link Loss Timer