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C-SIP RED Platform, pullups to SYS_VDD1_3P3V

This topic has 2 replies, 2 voices, and was last updated 3 years, 9 months ago by scott_vubiq.

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- February 3, 2021 at 2:36 pm #11200
  scott_vubiq
  Participant
  Hello,
  For the following signals, is there some significance to using SYS_VDD1_3P3V, rather than SYS_VDD3_3P3V for example?
  Boot-config resistors
  USB1OCn
  I2C0
  Thank you,
  Scott
- February 5, 2021 at 11:30 am #11203
  Neeraj Dantu
  Moderator
  Scott,
  There is little significance to these pull-up voltage source. It is just much easier to pull-up these signals with a SYS_VDD1_3P3V power plane vs SYS_VDD3_3P3V. Please see OSD3358-SM-RED layout: https://octavosystems.com/octavo_products/osd3358-sm-red/#Design%20Files%20-%20OSD335x-SM
  Best,
  Neeraj
- February 9, 2021 at 5:56 pm #11210
  scott_vubiq
  Participant
  Neeraj,
  Thank you for your help.
  Scott
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