Advantech SOM-5871 User Manual page 69

Note! CSM: The Compatibility Support Module (CSM) is a component of the
UEFI firmware that provides legacy BIOS compatibility by emulating a
BIOS environment, allowing legacy operating systems and some option
ROMs that do not support UEFI to still be used.
CSM also provides required legacy System Management Mode (SMM)
functionality, called CompatibilitySmm, as an addition to features pro-
vided by the UEFI SMM. This is optional and highly chipset- and plat-
form-specific. An example of such a legacy SMM functionality is
providing USB legacy support for keyboard and mouse, by emulating
their classic PS/2counterparts.
3.1.2.17 NVMe Configuration
Feature
NVMe Device
Options Description
No option Shows the current status
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