LVDS Encoder
Integrated Device Technology V103 LVDS encoder - IDTV103
Tegra 3 only supports a parallel interface or SPI LCD, DVI, an HDMI HDTV, RGB monitor or a MIPI DSI LCD.
Surface RT uses a LVDS Display. Therefore an translator is needed.
They used a Integrated Device Technology V103 LVDS encoder https://datasheetspdf.com/pdf-file/696938/IntegratedDeviceTechnology/V103/1
The converter is transparent to the SoC and does its job without any configuration. It only needs power and the PowerDown pin set to LOW

GPIOs

B2 - power down
If we set this pin to LOW from UEFI Shell new information can't be send from the SoC to the display. In this case the image fades out.
V103_IntegratedDeviceTechnology.pdf
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