TJA1100 Rx and Tx Failure Count

yuvaraj_ayyasam — Tue, 08 Jan 2019 12:19:24 GMT

Hi Community,

I have a question about the TJA1100. We are using TJA1100 PHY for our automotive applications with the i.MX6 Dual Plus combination. We have requirement to fetch PHY Rx and Tx failure count. We gone through the TJA1100 PHY datasheet, I find

1) Link fail counter register (Register 26)

* LOC_RCVR_CNT[15:8] &

* REM_RCVR_CNT[7:0])

(or)

2) Communication status register (Register 23)

* RECEIVE_ERR[4] &

* TRANSMIT_ERR [3]

Which register we need to prefer to counting receiver error count and transmit error count.

I have the following doubts,

1) If register 26 is correct, then shall we assume like below

Local receiver count(LOC_RCVR_CNT) = Tx failure

Remote receiver count(REM_RCVR_CNT) = Rx Failure

(or)

2) If register 23 is correct, then shall we assume like below

RECEIVE_ERR = We need to increase the count as Rx failure, as soon as this bit is enabled.

TRANSMIT_ERR = We need to increase the count as Rx failure, as soon as this bit is enabled.

Could someone please clarify my doubt.

Thanks,

UVee

Re: TJA1100 Rx and Tx Failure Count

TomasVaverka — Thu, 10 Jan 2019 11:27:48 GMT

Hi Yuvaraj,

I would recommend you to create a standard support request as this needs to reviewed by product specialists or local FAEs.

Thank you for your understanding!

Best regards,

Tomas

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TJA1100 Rx and Tx Failure Count

Re: TJA1100 Rx and Tx Failure Count