External Smi Interrupt; Wake On Ring - Advantech SOM-ETX Series Design Manual

5.14.8 External SMI Interrupt

Figure 5-48 External SMI Interrupt Connections
The active-low SMI input allows external devices to signal a system-management
event. Response to this signal depends upon system software.
The implementation details for this feature can be different between SOM-ETX
modules. Refer to the individual SOM-ETX user's guide for details.

5.14.9 Wake on Ring

RINGWAKE# is an active-low output from the serial port to SOM-ETX module. Wake
the system up when a telephone ring signal is detected.
SOM-ETX
RINGWAKE#
RINGWAKE# pull-up resister is already
on SOM-ETX modules
Figure 5-49 Wake on Ring Connections(two Comport)
Advantech SOM-ETX Design Guide
SOM-ETX
EXTSMI#
3
1
MMBT3904
2
Chapter 5 Carrier Board Design Guidelines
Carryboard
Device
MMBD2837LT1
3 1
1K 10K 2
4.7u 2.2K
NRI#1
NRI#2
113