Intel® Core™ Ultra Processor

Datasheet, Volume 1 of 2
Supporting Intel® Core™ Ultra Processor for U/H/U-Type4-series Platforms, formerly known as Meteor Lake

ID Date Version Classification
792044 03/05/2024 Public

A newer version of this document is available. Customers should click here to go to the newest version.

Document Table of Contents

Digital Display Interface DDI Signals

Digital Display Interface DDI Signals

Signal Name

Type

Description

DDIA_​TXP[3:0]

DDIA_​TXN[3:0]

O

Digital Display Interface A (DDIA): Digital Display Interface main link transmitter lanes.

DDIA_​AUXP

DDIA_​AUXN

I/O

Digital Display Interface A (DDIA): DisplayPort Auxiliary: Half-duplex, bidirectional channel consist of one differential pair.

GPP_​E08/DDPA_​CTRLDATA/SATALED#/USB-C_​GPP_​E08

GPP_​E22/DDPA_​CTRLCLK/DNX_​FORCE_​RELOAD/USB-C_​GPP_​E22

I/O

Digital Display Interface A (DDIA): HDMI Graphics Management Bus (GMBUS).

GPP_​E14/DDSP_​HPDA/DISP_​MISCA/USB-C_​GPP_​E14

I

Digital Display Interface A (DDIA): Hot Plug Detect (HPD).

VDDEN

O

Digital Display Interface A (DDIA): eDP Panel power control enable signal.

BKLTEN

O

Digital Display Interface A (DDIA): eDP Panel back-light control enable signal.

BKLTCTL

O

Digital Display Interface A (DDIA): eDP Panel back-light control Pulse Wide Modulation (PWM) signal.

DDIB_​TXP[3:0]

DDIB_​TXN[3:0]

O

Digital Display Interface B (DDIB): Digital Display Interface main link transmitter lanes.

DDIB_​AUXP

DDIB_​AUXN

I/O

Digital Display Interface B (DDIB): DisplayPort Auxiliary: Half-duplex, bidirectional channel consist of one differential pair.

GPP_​H17/DDPB_​CTRLDATA/USB-C_​GPP_​H17

GPP_​H16/DDPB_​CTRLCLK/PCIE_​LINK_​DOWN/USB-C_​GPP_​H16

I/O

Digital Display Interface B (DDIB): HDMI Graphics Management Bus (GMBUS).

GPP_​B16/DDSP_​HPDB/DISP_​MISCB/USB-C_​GPP_​B16

I

Digital Display Interface B (DDIB): Hot Plug Detect (HPD).

GPP_​B17/VDDEN2/USB-C_​GPP_​B17

O

Digital Display Interface B (DDIB): eDP Panel power control enable signal.

GPP_​D01/I2C3A_​SDA/BKLTEN2/ISH_​I2C2A_​SDA/USB-C_​GPP_​D01

O

Digital Display Interface B (DDIB): eDP Panel back-light control enable signal.

GPP_​D02/I2C3A_​SCL/BKLTCTL2/ISH_​I2C2A_​SCL/USB-C_​GPP_​D02

O

Digital Display Interface B (DDIB): eDP Panel back-light control Pulse Wide Modulation (PWM) signal.

DDI_​RCOMP

Analog

DDI IO Compensation resistors.

GPP_​E14/DDSP_​HPDA/DISP_​MISCA/USB-C_​GPP_​E14

GPP_​B16/DDSP_​HPDB/DISP_​MISCB/USB-C_​GPP_​B16

GPP_​B09/DDSP_​HPD0/DISP_​MISC1/USB-C_​GPP_​B09

GPP_​B10/DDSP_​HPD1/DISP_​MISC2/USB-C_​GPP_​B10

GPP_​B11/USB_​OC1#/DDSP_​HPD2/DISP_​MISC3/USB-C_​GPP_​B11

GPP_​B14/USB_​OC2#/DDSP_​HPD3/DISP_​MISC4/USB-C_​GPP_​B14

O

DDI Misc signals.

Notes:
  • Auxiliary Channel (AUX CH) is a half-duplex bidirectional channel used for link management and device control. AUX CH is an AC coupled differential signal.

  • GMBUS follows I2C Protocol.