Intel® Processor and Intel® Core™ i3 and Intel® Core™ 3 N-Series

Datasheet, Volume 1 of 2

ID Date Version Classification
759603 01/07/2025 Public
Document Table of Contents

Power Management Sub-state

S0ix State Enable

If a platform wants to disable certain S0ix states, BIOS can do so by modifying the LPM_​EN register. The mapping of S0ix states to bits in the LPM_​EN register are given below:

LPM_​EN Register Mapping

Bit Number

S0ix State

Required Implementation1

0

S0i2.0

None2

1

S0i3.0

None2

Notes:
  1. Other board capabilities such as power control for RTD3 cold may be implicitly required to satisfy requirements.
  2. For external bypass voltage selection, VNN_​CTRL can be used to select the external bypass.