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22 Technical Product Specification
Order #273817
Intel NetStructure
®
MPCBL0001 High Performance Single Board Computer
Contents
2.2.4 I/O
2.2.4.1 Super I/O (U28)
The Super I/O device (SIO) is an SMSC LPC47B272 enhanced Super I/O controller. The SIO
connects to the ICH3 through its LPC bus connection. The SIO provides support for the front panel
serial port (J17, see page 80). There is no front-panel connection to the legacy keyboard and mouse
PS/2 ports. Keyboard and mouse support are provided by the USB connection (J12, see page 87).
See Figure 13 for connector locations.
To facilitate debug and BIOS development, SIO connections such as legacy (PS/2) keyboard/
mouse and floppy may be provided on initial board revisions. Software must not rely on the
presence of these connections on future board revisions.
Figure 2. Memory Ordering
B0894-01
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Last
MCH, U22
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First
J10
J11
J8
J9