• State TI Thinks Resolved
  • Replies 1 reply
  • Answers 1 answer
  • Subscribers 33 subscribers
  • Views 43 views
  • Users 0 members are here
Support feedback
Options
Options
Related

TCAN1043-Q1: Clarification for mode change timing

Subhash Chandran E K
Prodigy 30 points
Part Number: TCAN1043-Q1
Other Parts Discussed in Thread: TCAN1043

Tool/software:

Hello Team,

In the data sheet of TCAN1043,  Mode change time for leaving Sleep mode to entering normal (TMode1) is mentioned as Maximum 20 micro seconds. From the software I'm setting the necessary voltage in STB and EN pins through DIO and reading the voltage levels back to ensure the necessary voltage on the pins. What I Assume is that the TMode1 is the time required to change the internal state of the transceiver to NORMAL mode and this delay need to be ensured before transmitting any frame through the device.

Is my understanding correct?

OR should the software wait for 20us before reading back the pins after setting the necessary voltage levels? I assume this is not necessary as I'm only reading back the microcontroller output voltage levels which is connected the transceiver pins.

Thanks in advance.

Regards,

Subhash

  • 0
    TI__Mastermind 28030 points

    Hi Subhash,

    Subhash Chandran E K said:
    What I Assume is that the TMode1 is the time required to change the internal state of the transceiver to NORMAL mode and this delay need to be ensured before transmitting any frame through the device.

    Yes your understanding is correct. A delay of 20us is recommended after your STB and EN pins goes high (while VCC and VIO are supplied).

    Regards,

    Sean