Intel® Core™ Ultra 200H and 200U Series Processors

Datasheet, Volume 1 of 2

ID Date Version Classification
842704 05/27/2025 Public
Document Table of Contents

Enhanced Serial Peripheral Interface (eSPI)

The processor provides the Enhanced Serial Peripheral Interface (eSPI) to support connection of an EC (typically used in mobile platform) or an SIO (typically used in desktop platform) to the platform. Below are the key features of the interface:

  • 1.8 V support only
  • Support for Host Attached Flash (MAF) and Device Attached Flash (SAF).
  • Support for up to 50 MHz (configured by soft straps)
  • Up to quad mode support
  • Support for PECI over eSPI
  • Support for Multiple OOB Controller (dedicated OOB channel for different OOB Controllers in the Processor such as PMC and CSME)
  • Transmitting RTC time/date to the device upon request
  • In-band messages for communication between the Processor and device to eliminate side-band signals.
  • Real time SPI flash sharing, allowing real time operational access by the processor and device.

Acronyms

Acronyms

Description

EC

Embedded Controller

MAFCC

Host Attached Flash Channel Controller (MAFCC)

SAFCC Device Attached Flash Channel Controller (SAFCC)

OOB

Out-of-Band

TAR

Turn-around cycle

References

Specification

Document Number/Location

Enhanced Serial Peripheral Interface (eSPI) Specifications

https://downloadcenter.intel.com/download/27055/eSPI