Chapter 2: Introduction
54
Non-Recoverable Events
Non-recoverable events indicate that the blade may no longer be functioning because it is now
outside of its operating limits. It is likely that action is required or has already been taken by the
local hardware/firmware. For example, a processor may have shut itself down because its
maximum die temperature was exceeded, or a shelf manager may decide to deactivate the
blade because the processor is too hot.
LED Visual Indicators
This section describes the front panel LED indicators on the CPC324.
Hot-Swap LED
The blue hot-swap LED, when illuminated, indicates that the CPC324 can safely be hot
swapped (electrically). The impact on system operation depends on the application software
being run.
The hot-swap LED can be controlled by the PLX PCI6254 L_STAT bit, the Zircon UL peripheral
manager GPIO32, or the general purpose CPLD register. They are connected in an “OR”
configuration. Any source can turn on the LED, but all must agree to turn it off.
SYSTEM LED
This LED is software programmable and can be green, yellow, or off. It is controlled by the
general purpose CPLD register. Its meaning is dependent on the application software being
run.
FAULT LED
This LED is software programmable and can be green, red, or off. It is controlled by the general
purpose CPLD register. Its meaning is dependent on the application software being run.
Ethernet LEDs
This section describes the LEDs associated with the CPC324 Ethernet ports.
Management Port (Integrated LEDs)
The LEDs are built in to the RJ45 connector.
The ACT/LNK LED is directly connected to BCM5461s PHY. It uses the receive LED output set
to activity/link mode to indicate the link status and transmit/receive activity. The green LED will
turn on if there is a good link at any speed and will flash at a 167 ms (6Hz) rate, 50% duty cycle
if link is established and there is transmit or receive activity. The LED will be off while the device
is in reset.
Note: This LED will blink ½ the speed of the BCM5388 LEDs (for the PICMG 2.16 link ports).
The speed LED is directly connected to BCM5461s PHY. It uses a combination of the Link[2]
and Link[1] outputs for the speed LED indication. The yellow speed LED will turn on when link
is established at 1000 Mb. The yellow LED will be off for 10 Mb or 100 Mb link.
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