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 Planes and States for Testability Signals

Signal Name

Power Plane2

Resistors 2

During Reset1

Immediately after Reset1

S4/S5

Processor JTAG signals
PROC_​JTAG_​TCK VCCPRIM_​IO

Strong Internal Pull-Down

Driven Low

Driven Low

Driven Low

PROC_​JTAG_​TMS VCCPRIM_​IO

Internal Pull-Up

Driven High

Driven High

Driven High

PROC_​JTAG_​TDI VCCPRIM_​IO

Internal Pull-Up

Driven High

Driven High

Driven High

PROC_​JTAG_​TDO VCCPRIM_​IO

External Pull-Up

Undriven

Undriven

Undriven

PROC_​JTAG_​TRST# VCCPRIM_​IO Strong Internal Pull-Down

Driven Low

Driven Low

Driven Low

DBG_​PMODE VCCPRIM_​IO

Internal Pull-Up

Driven High

Driven High

Driven High

Notes:
  1. Reset reference for primary well pins is RSMRST#.
  2. It is strongly recommended to reserve pads for PU\PD resistor in parallel to the internal resistor