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DS90UB927Q-Q1: does UB927 have a status bit flag or the high and low status of the IO port to notify it of disconnection from UB928?

Amelie Zheng
Genius 10865 points
Part Number: DS90UB927Q-Q1

Hi Team,

  • If the connection between UB928 and UB927 is disconnected, does UB927 have a status bit flag or the high and low status of the IO port to notify it of disconnection from UB928?
  • The power supply of the head unit side and the display side are supplied separately. When communicating normally, suppose that the UB928 is powered off and restarted. As the UB928 defaults to GPIO[0:3] which is not remotely controlled, can UB927's GPIO[0:3] be able to remotely control UB928's GPIO[0:3]?