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DS90UH947-Q1: Save registers after power off

Part Number: DS90UH947-Q1

Hello,

My setup is currently

LVDS->947->948->display

Meanwhile, I have I2C devices connected to the 948 I2C bus that I am trying to access using a microcontroller that is connected to the I2C bus on the 947.

I am changing register 0x17 to be 0x9E on the 947, and register 0x05 to be 0x9E on the 948 to achieve this. However, every time I power down the registers return to default. Is there a way to lock these registers to be the same after power cycling?