Intel® 500 Series Chipset Family PCH Datasheet Volume 1

Datasheet

ID Date Version Classification
635218 30/09/2021 00:00:00 006 Public Content
Document Table of Contents
ICC

Embedded DisplayPort* (eDP*) Backlight Control Signals

Embedded DisplayPort* (eDP*) Backlight Control Signals

Name Type Description
GPP_​F19 / eDP_​VDDEN O Primary eDP Panel power Enable: Panel power control enable. This signal is used to control the VDC source of the panel logic.
GPP_​F20 / eDP_​BKLTEN O Primary eDP Backlight Enable: Panel backlight enable control for eDP This signal is used to gate power into the backlight circuitry.
GPP_​F21 / eDP_​BKLTCTL O Primary eDP Panel Backlight Brightness control: Panel brightness control for eDP. This signal is used as the PWM Clock input signal.
GPP_​K10 / DDSP_​HPDC / DISP_​MISCC O Secondary eDP Panel power Enable: Panel power control enable. This signal is used to control the VDC source of the panel logic.
GPP_​I7 / DDPC_​CTRLCLK O Secondary eDP Backlight Enable: Panel backlight enable control for eDP This signal is used to gate power into the backlight circuitry.
GPP_​I8 / DDPC_​CTRLDATA O Secondary eDPI Panel Backlight Brightness control: Panel brightness control for eDP. This signal is used as the PWM Clock input signal.
Note: eDP_​VDDEN, eDP_​BKLTEN, eDP_​BKLTCTL, DISP_​MISCC, DDPC_​CTRLCLK, DDPC_​CTRLDATA can be left as no connect if eDP* is not used.