Technical data

LED Indicators
HP bc2100 ATCA Server Blade
Chapter 2
114
The user-programmable LEDs are connected to the GPIO pins on the ICH device, as shown in Table 2-29.
Ethernet Controller Port State (Base Ethernet Activity/Link) LEDs
The front panel of the HP bc2100 ATCA Server Blade provides a bi-color LED for each Ethernet channel that
indicates the Ethernet port state. These LEDs can display a red, green or amber color (Table 2-30). The
function of the port state LEDs is user definable. The Ethernet Controller SDP[6:7] GPIO bits for each
channel are the outputs that control the LEDs. SDP[6] is connected to the Green LED, and SPD[7] is
connected to the Red LED.
Refer to the documentation for the Intel® 82546 Dual Gigabit Ethernet Controller for information on how to
drive these LED signals. Note that existing network drivers may drive these GPIO pins.
Hot-Swap LED (DS10)
The HP bc2100 ATCA Server Blade can be hot-swapped in and out of a chassis. The onboard IPMC manages
the HP bc2100 ATCA Server Blade power-up and power- down transitions.
The HP bc2100 ATCA Server Blade supports one blue Hot-Swap LED, mounted on the front panel. This LED
indicates when it is safe to remove the HP bc2100 ATCA Server Blade from the chassis. The on-board IPMC
drives this LED to indicate the hot-swap state. The Hot-Swap LED is identified by the following graphical
legend on the Server Blade front panel:
When the lower ejector handle is disengaged from the faceplate, the hot-swap switch embedded in the PCB
will assert a "HOT_SWAP_PB#" signal to the IPMC, and the IPMC will move from the M4 state to the M5
state. At the M5 state, the IPMC will ask the CMM (or Shelf Manager) for permission to move to the M6
state. The Hot-Swap LED will indicate this state by blinking on for about 100 milliseconds, followed by 900
milliseconds in the off state. This will occur as long as the HP bc2100 ATCA Server Blade remains in the M5
state. Once permission is received from the CMM or higher-level software, the HP bc2100 ATCA Server Blade
will move to the M6 state.
Table 2-29 GPIO Pin Connections
LED Pin
User_Prog_LED1_Red# GPIO20
User_Prog_LED1_GRN# GPIO21
User_Prog_LED2_Red# GPIO28
User_Prog_LED2_GRN# GPIO23
Table 2-30 Ethernet Controller Port State LEDs
LED Status (L1 and L5) Meaning
Off No status
Red, or Green, or Amber Active status of user-defined function