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

I/O Signal Planes and States

Power Plane and States for PCI Express* Signals 

Signal Name

Type

Power Plane

During Reset2

Immediately After Reset2

S4/S5

PCIE_​*_​TXP/

PCIE_​*_​TXN

O

Primary

Internal Pull-down

Internal

Pull-down

Internal Pull-down

PCIE_​*_​RXP/

PCIE_​*_​RXN

I

Primary

Internal Pull-down

Internal

Pull-down

Internal Pull-down

PCIE_​*_​RCOMP

I

Primary

Undriven

Undriven

Undriven

Notes:
  1. PCIE_​RXP/RXN pins transition from un-driven to Internal Pull-down during Reset.
  2. Reset reference for primary well pins is RSMRST#.