TCAN1145-Q1: Unintended flag asserted

Yuya Shoji

Expert 8210 points

Part Number: TCAN1145-Q1

Hi team,

I'm BCCing my customer.

They observed that FSM_CONFIG[3:1] is set as 010b which is reserved settings. They found it with following handling.

a. Read FSM_CONFIG=>0x00h

b. Power down ECU with following order

VIO->VCC->VSUP

c. Power up ECU(at this moment, VSUP is around 4V due to residual voltage)

d. Read FSM_CONFIG=>0x04h

Q1. What condition can cause this register setting?

Q2. Is FS_STAT=010b okay to operate the device?

Q3. If Q2 answer is NO, how should user manage this?

Best Regards,

Shoji

1 month ago

0 Ethan Sempsrott 1 month ago

TI__Mastermind 29652 points

Hi Shoji,

I'll get you a response tomorrow.

Best,

Ethan

0 Yuya Shoji 26 days ago in reply to Ethan Sempsrott

TI__Expert 8210 points

Hi Ethan,

Any update on this?

Best Regards,

Shoji

0 Sean Guo 26 days ago in reply to Yuya Shoji

TI__Mastermind 33320 points

Hi Shoji,

The datasheet appears to be incorrect here, confirmed by design it should be UVIO not Reserved.

Regards,

Sean

0 Yuya Shoji 20 days ago in reply to Sean Guo

TI__Expert 8210 points

Hi Sean,

Thanks for your confirmation.

Do you know when you are to reflect this correction to the D/S?

Best Regards,

Shoji

0 Sean Guo 19 days ago in reply to Yuya Shoji

TI__Mastermind 33320 points

Hi Shoji,

It will be fixed in the next release of revision. However I don't know when it may happen. For now please just tell the customer this is a typo.

Regards,

Sean

Interface

Interface forum

TCAN1145-Q1: Unintended flag asserted