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 05/09/2025 Public
Document Table of Contents

Signal Description

Signal Name

Type

Description

GPP_​C04/SML0DATA/USB-C_​GPP_​C04

I/OD

System Management Link 0 Data: SMBus link to external PHY.

External Pull-up resistor required.

GPP_​C03/SML0CLK/USB-C_​GPP_​C03

I/OD

System Management Link 0 Clock

External Pull-up resistor required.

GPP_​C05/SML0ALERT#/USB-C_​GPP_​C05

I/OD

System Management 0 Alert: Alert for the SMBus controller to optional Embedded Controller or BMC.

External Pull-up resistor required.

GPP_​C06/SML1CLK/USB-C_​GPP_​C06

I/OD

System Management Link 1 Clock: SMBus link to optional Embedded Controller or BMC. External Pull-up resistor required.

GPP_​C07/SML1DATA/USB-C_​GPP_​C07

I/OD

System Management Link 1 Data: SMBus link to optional Embedded Controller or BMC. External Pull-up resistor required.

GPP_​C08/SML1ALERT#/SOCHOT#/USB-C_​GPP_​C08

I/OD

System Management 1 Alert: Alert for the SMBus controller to optional Embedded Controller or BMC. A soft-strap determines the native function SML1ALERT# or SOCHOT# usage.

This is NOT the right Alert pin for USB-C* usage.

External Pull-up resistor is required on this pin.

GPP_​D06/ISH_​UART0_​TXD/ISH_​SPI_​CLK/SML0BCLK/USB-C_​GPP_​D06 (U Type4) I/OD

System Management Link 0 B Clock

External Pull-up resistor required.

Note:Alternate interface from/to same SML0 controller

GPP_​D05/ISH_​UART0_​RXD/ISH_​SPI_​CS#/SML0BDATA/USB-C_​GPP_​D05 (U Type4) I/OD

System Management Link 0 B Data

External Pull-up resistor required.

Note:Alternate interface from/to same SML0 controller

GPP_​D08/ISH_​UART0_​CTS#/ISH_​SPI_​MOSI/SML0BALERT#/USB-C_​GPP_​D08 (U Type4) I/OD

System Management 0 Alert: Alert for the SMBus controller to optional Embedded Controller or BMC.

External Pull-up resistor required.

Note:Alternate interface from/to same SML0 controller

GPP_​F15/GSXSRESET#/USB-C_​SMLDATA/THC1_​SPI2_​IO3/GSPI0A_​MISO/USB-C_​GPP_​F15 I/OD

System Management bus over Sideband 2 Core Data

External Pull-up resistor required.

GPP_​F14/GSXDIN/USB-C_​SMLCLK/THC1_​SPI2_​IO2/GSPI0A_​MOSI/USB-C_​GPP_​F14 I/OD

System Management bus over Sideband 2 Core Clock

External Pull-up resistor required.

GPP_​E02/USB-C_​SMLADATA/THC0_​SPI1_​IO3/USB-C_​GPP_​E02 I/OD

System Management bus over Sideband 2 Core Data

External Pull-up resistor required.

GPP_​E01/USB-C_​SMLACLK/THC0_​SPI1_​IO2/USB-C_​GPP_​E01 I/OD

System Management bus over Sideband 2 Core Clock

External Pull-up resistor required.

INTRUDER# I

Intruder Detect.