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

Signal Name

Power Plane

During Reset1

Immediately after Reset1

S4/S5

GSPI1_​CS0#, GSPI0_​CS0# ,

GSPI0A_​CS0#

Primary

Undriven

Undriven

Undriven

GSPI1_​CLK, GSPI0_​CLK ,

GSPI0A_​CLK

Primary

Undriven

Undriven

Undriven

GSPI1_​MISO, GSPI0_​MISO ,

GSPI0A_​MISO

Primary

Undriven

Undriven

Undriven

GSPI1_​MOSI, GSPI0_​MOSI,

GSPI0A_​MOSI

Primary

Internal Pull-down

Driven Low

Internal Pull-down

Notes:
  1. Reset reference for primary well pins is RSMRST#.