HI Dongbao,
I will have to look into this and get back to you. In the meantime here are two I2C appnotes that apply to FPD3 devices.
6318.snla131a.pdf
6840.snla222.pdf
Regards,
Ben
Also,
In case you have not seen these yet, here are two app notes that discuss I2C communication over FPD-Link:
SNLA131A - I2C Communication Over FPD-Link III with Bidirectional Control Channel
snla131a.pdf
SNLA222 - I2C over DS90UB913/4 FPD-Link…
