Intel® Processor and Intel® Core™ i3 N-Series
Datasheet, Volume 1 of 2
TCO Modes
TCO Compatible Mode
In TCO Legacy/Compatible mode, only the host SMBus is used. The TCO Target is connected to the host SMBus internally by default. In this mode, the Intel® Converged Security Engine (Intel® CSE) SMBus controllers are not used and should be disabled by soft strap.
The table below includes a list of events that will report messages to the network management console.
Event | Assertion? | Deassertion? | Comments |
---|---|---|---|
INTRUDER# pin | Yes | No | System must hung in S0 state |
Watchdog Timer Expired | Yes | NA | System will enter to hung state |
SMBALERT# pin | Yes | Yes | System must hung in S0 state |
BATLOW# | Yes | Yes | System must hung in S0 state |
CPU_PWR_FLR | Yes | No | System will enter to hung state |
Advanced TCO Mode
The PCH supports the Advanced TCO mode in which SMLink0 and SMLink1 are used in addition to the host SMBus.
In this mode, the Intel® CSE SMBus controllers must be enabled by soft strap in the flash descriptor. Refer to the figure below for more details.
In advanced TCO mode, the TCO target can either be connected to the host SMBus or the SMLink0.
SMLink1 can be connected to an Embedded Controller (EC).