Intel® 500 Series Chipset Family On-Package PCH Datasheet Volume 1

Datasheet

ID 631119
Date 13/07/2021 00:00:00
Public Content
Document Table of Contents

Modes of Operation

The DTS has two usages when enabled:

  1. One use is to provide the temperature of the PCH in units of 1 oC.  There is a 9 bit field for the temperature, with a theoretical range from –256 oC to +256 oC. Practically the operational range for TS would be between -40 oC and 110 oC.
  2. The second use is to allow programmed trip points to cause alerts to SW or in the extreme case shutdown. Temperature may be provided without having any SW alerts set.

There are two thermal alert capabilities. One is for the catastrophic event (thermal runaway) which results in an immediate system power down . The other alert provides an indication to the platform that a particular temperature has been caused. This second alert needs to be routed to SMI or SCI based on SW programming.