User Guide • PC1-GROOVE • Core
TM
i7
CompactPCI
®
CPU Board
EB (Ethernet Backplane) LED
To monitor the link status and activity on both Ethernet ports attached to the backplane via the J2/P2
connector (PlusIO) a single bicoloured LED is provided in the front panel. The states are decoded as
follows:
1_ETH
2_ETH
LED EB
no link
no link
OFF
link
no link
Green
no link
link
Yellow
link
link
Green/Yellow
Blinking of the LED EB in the appropriate colour means that there is activity on the port.
Hot Swap Detection
The
CompactPCI
specification added the signal ENUM# to the PCI bus to allow board hot swapping.
This signal is routed to the GPI3 of the PCH. A System Management Interrupt (SMI) can be requested
if ENUM# changes by insertion or removal of a board.
Note that the PC1-GROOVE itself is not a hot swap device, because it makes no sense to remove the
system controller from a
CompactPCI
system. However, it is capable to recognize the hot swap of
peripheral boards and to start software that is doing any necessary system reconfiguration.
Power Supply Status (DEG#, FAL#)
Power supply failures may be detected before the system crashes down by monitoring the signals
DEG# or FAL#. These active low lines are additions of the
CompactPCI
specification and may be
driven by the power supply. DEG# signals the degrading of the supply voltages, FAL# their possible
failure. On the PC1-GROOVE the signals FAL# and DEG# are routed to the PCH GPI4 and GPI5
respectively.
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