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STA369BWS Configuration Register C 0x02 - FFX Power Output Mode

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The STA369BWS datasheet offers little to no description of configuration register C addr 0x02.

It references a FFX power output mode and has 4 modes but offers no explanation of how these four modes function.

00: drop compensation

01: discrete output stage: tapered compensation

10: full-power mode

11: variable drop compensation

This clearly plays into CSZ0~3 bits that are only described as FFX compensating pulse size register.

Is there any description of these registers anywhere, or how they work?

I am designing a product that is having a PSU droop issue, and the ODM recommendation was to adjust this register, but I have no idea what it does or how it works. For what it is worth I am pushing for the HW solution. . .

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