Themis Computer
A-13
A. Connector Pinouts, LEDs, Switches
A.2.9
LEDs
An “ALARM” and a “READY” LED are located on the front panel of the baseboard.
• The “ALARM” LED has three possible colors: green, amber or red. Refer to Chapter 6, "FPGA,
Watchdog, Voltage and Temperature Sensors," for detailed information.
.
• The green “READY” LED is totally controlled by software. Refer to the USPIIi-1v Software Manual
for more information. When OBP takes control of the board at power-on, one of its first instructions is
to turn READY on. If the READY stays off, probably the boot code in Flash is corrupted, or the board
is damaged.
A.2.10
Push-Button RESET
A push button RESET is located on the front panel of the baseboard. This button will initiate a POR Reset to
the UltraSPARC-II
i
. This reset is propagated throughout the USPII
i
-1v. See Section 7.3.1, "Push Button
Reset," on page 7-3 for details.
Table A-10.
Possible colors of the ALARM LED
Color
Cause
Green
Normal Condition
Amber
Cause 1: Level 2 watchdog expired, watchdog is in coping state
Cause 2: Abnormal Power condition, Power Management System in coping state
Cause 3: Board reached Warning Temperature
Red
Cause 1: Level 3 watchdog expired, watchdog is in failed state
Cause 2: Abnormal Power condition, Power Management System in failed state
Cause 3: Board reached Critical/Shutdown Temperature
Содержание USPIIi-1v
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