Intel® 500 Series Chipset Family On-Package Platform Controller Hub Datasheet Volume 1

Datasheet

ID Date Version Classification
631119 23/09/2020 00:00:00 Public Content

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Document Table of Contents

Embedded DisplayPort* (eDP*) Backlight Control Signals

Embedded DisplayPort* (eDP*) Backlight Control Signals

Name Type Description
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.
eDP_​BKLTEN O Primary eDP Backlight Enable: Panel backlight enable control for eDP This signal is used to gate power into the backlight circuitry.
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_​A17 / DISP_​MISCC / I2S4_​TXD O Secondary eDP Panel power Enable: Panel power control enable. This signal is used to control the VDC source of the panel logic.
GPP_​A21 / DDPC_​CTRLCLK / I2S5_​TXD O Secondary eDP Backlight Enable: Panel backlight enable control for eDP This signal is used to gate power into the backlight circuitry.
GPP_​A22 / DDPC_​CTRLDATA / I2S5_​RXD O Secondary eDP 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.