Intel® Core™ Processor (Series 3)

Formerly known as Wildcat Lake, Datasheet, Volume 1 of 2

ID Date Version Classification
913965 05/19/2026 001 Public
Document Table of Contents
RFM

Digital Display Interface DDI Signals

Signal Name Type Description
DDIA_​TX_​P[3:0]

DDIA_​TX_​N[3:0]

O Digital Display Interface A (DDIA): Digital Display Interface main link transmitter lanes.
DDIA_​AUX_​P

DDIA_​AUX_​N

I/O Digital Display Interface A (DDIA): DisplayPort Auxiliary: Half-duplex, bidirectional channel consist of one differential pair.
GPP_​E08/DDPA_​CTRLDATA

GPP_​E07/DDPA_​CTRLCLK

I/O Digital Display Interface A (DDIA): HDMI Graphics Management Bus (GMBUS).
DDSP_​HPDA# I Digital Display Interface A (DDIA): Hot Plug Detect (HPD).
VDDEN O Digital Display Interface A (DDIA): eDP Panel power control enable signa
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_​TX_​P[3:0]

DDIB_​TX_​N[3:0]

O Digital Display Interface A (DDIB): Digital Display Interface main link transmitter lanes.
GPP_​C23/DDPB_​CTRLDATA

GPP_​C22/DDPB_​CTRLCLK

O Digital Display Interface A (DDIB): HDMI Graphics Management Bus (GMBUS).
GPP_​B14/USB_​OC1#/DDSP_​HPDB#/DISP_​MISCB I Digital Display Interface A (DDIB): Hot Plug Detect (HPD).
DDI_​RCOMP Analog DDI IO Compensation resistors.
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.