• State Resolved
  • Locked Locked
  • Replies 6 replies
  • Answers 1 answer
  • Subscribers 99 subscribers
  • Views 754 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

Original question:

TDA4VM: TDA4VM Errata i2310 USART: Erroneous clear/trigger of timeout interrupt

TDA4VM: UART i2310 errata

Manisha Narayana Gowda
Intellectual 380 points

Part Number: TDA4VM

Tool/software:

Hello all,
according to the errata i2310 
" The USART may erroneously clear or trigger the timeout interrupt when RHR/MSR/LSR
registers are read."

  • Will this errata occur even if all the interrupts are disabled?
  • Do we read the UART_IIR_UART::IT_TYPE as 6 to identify it as timeout interrupt? Why it is named as RX time- out. Does this interrupt related only to reception?
  • Which register is read to encounter time-out interrupt on reading the LSR or MSR register?
  • What is the function of  UART_IER_IRDA::RHR_IT. Acc to the description given in the TRM it is used to enable or disable the RHR and time-out interrupt, but why does UART_IER_IRDA::THR_IT not have time-out interrupt?
  • When I read the LSR/RHR/MSR, I have not encountered any errata. When this error is likely to appear?

Kind Regards
Thank You
Manisha N G