In addition, the system management mode (SMM) was first introduced with this processor. The system management mode makes it possible to shut down the processor without losing data. To achieve this, the processor state is saved in an area of static RAM (SMRAM).
In mid-1993, Intel incorporated the SMM feature in all its new 80486 processors and discontinued the SL series.
Refer to the respective section of the list of Intel microprocessors for technical details.