infineon4engineers Facebook

infineon@google+ Google+

infineon@linkedin linkedin

infineon4engi@twitter twitter

infineon@youtube youtube

+ Reply to Thread
Results 1 to 3 of 3

Thread: Doubts with non connected pins of XMC4800 microcontroller

  1. #1
    Beginner Beginner vinayshasyagar is on a distinguished road
    Join Date
    May 2018
    Posts
    12
    Points
    71.25

    Doubts with non connected pins of XMC4800 microcontroller

    Hello...I am using XMC4800 microcontroller for EtherCAT application. For my application HIB_IO pins are not required. I am providing an external coin cell battery of 3V to VBAT pin. So my question is, is it safe to just leave the HIB_IO pins non connected? If it is not safe Please tell me whether I should connect a pull down or pull up resistor. Also I have not used some of the GPIO pins. So is it safe to leave them non connected. Please help me to find out.


    Thank You

  2. #2
    New Member New Member Daniel.Sanchez is on a distinguished road
    Join Date
    Aug 2018
    Location
    Brazil
    Posts
    5
    Points
    150
    Nobody reply?
    I have the same doubt.

  3. #3
    New Member New Member S R is on a distinguished road
    Join Date
    Aug 2018
    Posts
    9
    Points
    115
    I don't know on the XMC4000s, but a lot of datasheets will either specifically say to leave non-connected, or common knowledge is to tie them either to ground or power. You don't want a floating input, can be a big waste of power. There are lots of topics on this.

    For your non-GPIO ethernet pin, I'd check their reference manual and copy whatever they did.

+ Reply to Thread

Tags for this Thread

Disclaimer

All content and materials on this site are provided “as is“. Infineon makes no warranties or representations with regard to this content and these materials of any kind, whether express or implied, including without limitation, warranties or representations of merchantability, fitness for a particular purpose, title and non-infringement of any third party intellectual property right. No license, whether express or implied, is granted by Infineon. Use of the information on this site may require a license from a third party, or a license from Infineon.


Infineon accepts no liability for the content and materials on this site being accurate, complete or up- to-date or for the contents of external links. Infineon distances itself expressly from the contents of the linked pages, over the structure of which Infineon has no control.


Content on this site may contain or be subject to specific guidelines or limitations on use. All postings and use of the content on this site are subject to the Usage Terms of the site; third parties using this content agree to abide by any limitations or guidelines and to comply with the Usage Terms of this site. Infineon reserves the right to make corrections, deletions, modifications, enhancements, improvements and other changes to the content and materials, its products, programs and services at any time or to move or discontinue any content, products, programs, or services without notice.