DS90UB941AS-Q1 to use back channel to powerdown and wake up DS90UB928Q-Q1

We use DS90UB941AS-Q1 and DS90UB928Q-Q1 and all control through Bidirectional Control Channel( i2C) to control 928,

and if we want to powerdown and wake-up DS90UB928Q-Q1 through DS90UB941AS-Q1  is workable or we do something at hw design?

Kailyn Chen：

Hello, I am so sorry that I didn't find any register which could wake up the device.
You could use the PDB pin to power down or wake up DS90UB928Q-Q1.