12th Generation Intel® Core™ Processors

Datasheet, Volume 1 of 2

ID 655258
Date 08/08/2022
Document Table of Contents

TCSS Power State

TCSS Power State 

TCSS Power State

Allowed Package C Status

Device Attached

Description

TC0

PC0-PC3

Yes

xHCI, xDCI, USB4 controllers may be active.

USB4 DMA / PCIe may be active.

TC7

PC6-PC10

Yes

xHCI and xDCI are in D3.

USB4 controller is in D3 or D0 idle.

USB4 PCIe is inactive.

TC-Cold

PC3-PC10

No

xHCI / xDCI / TBT DMA / TBT PCIe are in D3

IOM is active

TC10

PC6-PC10

No

Deepest Power state

xHCI and xDCI are in D3. USB4 is in D3 or D0 idle.

USB4 CIe is in inactive

IOM is inactive

IOM - TCSS Input Output Manager:

  • The IOM interacts with the SoC to perform power management, boot, reset, connect and disconnect devices to TYPE-C sub-system

TCSS Devices (xHCI / xDCI / TBT Controllers) - power states:

  • D0 - Device at Active state.
  • D3 - Device at lowest-powered state.