C2K User’s Guide
3-16
Interfaces
3.3 Front-panel LEDs
PWR
PBIT
USER
IPMC
PWR
PBIT
USER
IPMC
HS
HS
The C2K provides the following indicator LEDs on the front panel:
Figure 3-5
Front-panel LEDs
LED
indication
Color
Function
PWR
Green
Illuminates when the internal power rails are within specification. De-illuminates when
internal power rails are out of specification.
PBIT
Green
Illuminates when the processor has completed its built-in test diagnostics. De-illumi-
nates if the built-in test diagnostic tests fail, either during the initial power-up or reset
diagnostics, or during continual background diagnostics.
User
Yellow
User-defined. Controlled through MV64460 multi-purpose pin
8051
Yellow
Controlled by the C8051 microcontroller
Hot Swap
Blue
Hot Swap status LED as defined in PICMG 2.1
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