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4 ETX® Connectors
The ETX®-CN8 provides an external input for a power-good signal or a manual- reset pushbutton. The
implementation of this subsystem complies with the ETX® Specification. Implementation information is
provided in the ETX® Design Guide. Refer to the documentation for additional information.
Power Management
ATX PS Control:
The ETX®-CN8 can control the main power output of an ATX-style power supply. The implementation of
this subsystem complies with the ETX® Specification. Implementation information is provided in the
ETX® Design Guide. Refer to the documentation for additional information.
External SMI Interrupt
Contact Kontron Embedded Modules GmbH technical support for information on this feature.
Miscellaneous Circuits
Speaker
The implementation of the speaker output complies with the ETX® Specification. Implementation
information is provided in the ETX® Design Guide. Refer to the documentation for additional
information.
Battery
The implementation of the battery input complies with the ETX® Specification. Implementation
information is provided in the ETX® Design Guide. Refer to the documentation for additional
information.
In compliance with EN60950, there are at least two current-limiting devices (resistor and diode)
between the battery and the consuming component.
I2C Bus
The I2C Bus is implemented by using general purpose I/O.
You also can access the I2C Bus via JUMPtec's Intelligent Device Architecture (JIDA) BIOS functions.
For additional information, refer to the ETX® Design Guide. I2C application notes and JIDA
specifications are available at the Kontron Web site.
SM Bus
System Management (SM) bus signals are connected to the SM bus controller, which is located in the
Southbridge (VIA® VT8237S) device. For more information about the SM bus, please see the System
Management (SM) Bus section in the Appendix A: System Resources chapter.
Kontron User's Guide ETX®-CN8
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