Miscellaneous circuits – Kontron COMe-cSP2 User Manual
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4.3.10 Miscellaneous Circuits
Speaker
The implementation of this subsystem complies with the COM Express® Specification. Implementation information is
provided in the COM Express® Design Guide. Refer to the official PICMG documentation for additional information.
Battery
The implementation of this subsystem complies with the COM Express® Specification. Implementation information is
provided in the COM Express® Design Guide. Refer to the official documentation maintained by PICMG 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
For additional information, refer to the COM Express® Design Guide, I2C application notes and JIDA specifications
which are available at the Kontron Web site. See BIOS chapter for supported
of I2C.
SM Bus
System Management (SM) bus signals are connected to the SM bus controller, which is located in the Intel® US15W
system controller hub. The SMBus is a two wire bidirectional bus (clock and serial data) used for system management
such as reading parameters from a memory card, and reading temperatures and voltages of system components.
The SM Bus uses the same signaling scheme as an I2C bus.
PCI Bus
The Intel® US15W SCH does not support PCI. Therefore a PLX Technology PCIexpress to PCI bridge PEX8112 is used.
The bridge is connected to Port #3 of the PCIe switch and provides a standard PCI 3.0 32bit/33MHz interface. The
implementation of this subsystem complies with the COM Express® Specification. Implementation information is
provided in the COM Express® Design Guide. Refer to the official PICMG documentation for additional information.
IDE Port
The IDE host adapter in the Intel® US15W SCH is capable of UDMA-33/66/100 operation. The implementation of this
subsystem complies with the COM Express® Specification. Implementation information is provided in the COM
Express® Design Guide. Refer to the documentation maintained by PICMG for additional information.