User Guide CCM-BOOGIE • High Performance Core
TM
2 Duo 3U
CompactPCI
®
CPU Board
© EKF -24- ekf.com
Reset
The CCM-BOOGIE is provided with several supervisor circuits to monitor supply rails like the CPU core
voltage, 1.5V, 3.3V or 5V. This circuitry is responsible also to generate a clean power-on reset signal.
Due to lack of space within the front panel the CCM-BOOGIE does not offer a classical push button
to force a manual board reset. Nevertheless it is possible to reset the board manually. The ejector
within the front panel contains a micro switch that is used to generate a board reset signal. This is
done by pushing the red button of the ejector until the handle unlocks without ejecting the board.
Immediately after that push up the ejector back to its original position (the red button jumps up as
well). Animated GIF: www.ekf.com/c/ccpu/img/reset_400.gif
The 2
nd
function of the red push button is to act as the board's power button. When pressing besides
the reset also a power button event is created.
NOTE: To prevent the board to cause a power button override, the handle should be closed
immediately after unlocking the front panel handle. A power button override is triggered by opening
the front panel handle for at least 4 seconds. It results in bringing the board to power state S5. In
case of entering this state, unlock and lock the front panel handle a 2
nd
time to reenter normal power
state S0 again. See also section 'PG (Power Good) LED' to see how the CCM-BOOGIE indicates the
different power states.
WARNING: The CCM-BOOGIE will enter the power state S5 if the front panel handle is not closed
properly when the system powers up. An open handle is signalled by a yellow blinking ‘PG LED’.
The manual reset and power button functionality of the front panel handle could be controlled by
BIOS Setup.
An alternative (and recommended) way to generate a system reset is to activate the signal PRST#
located on CompactPCI connector J2 pin C17. Pulling this signal to GND will have the same effect as
to push the handle's red push button.
The healthy state of the CCM-BOOGIE is indicated by the LED PG (Power Good) located in the front
panel. This bicoloured LED signals different states of the board (see section below). As soon as this
LED begins to shine green all power voltages are within their specifications and the reset signal has
been deasserted.
