User Guide • SC3-LARGO • CompactPCI
®
Serial CPU Board • Intel
®
Core
TM
5xxx Processor
Peripheral Slot Operation
Beyond that the SC3-LARGO is operable in periphery slots as well. In this case it acts as a satellite
system, linked to other (processor-) boards by its backplane Ethernet connections. The other resources
associated with the backplane like PCI Express, SATA or USB are not usable in this situation.
Some of the following, system slot dedicated control signals get an altered function or will be
disconnected from the backplane:
< PWRBTN# (Connector P1 Pin C3) will be disconnected
< PWR_FAIL# (Connector P1 Pin F3) becomes GA1
< PRST# (Connector P1 Pin H2) becomes RST# and will be disconnected
< WAKE# (Connector P1 Pin I2) will be disconnected
< SGPIO (Connector P1 Pins G3/H3/J3/K3) will be disconnected
One result of that is, that a SC3-LARGO plugged into a peripheral slot will not get a reset even if the
system controller forces the reset signal on the backplane to an active state.
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