LEDs on the Front Panel
49
Appendix A
Appendix A
LEDs on the Front Panel
There are seven LED indicators on the front panel of the VXI Pentium
Controller which provide information about the state of the controller. The
following table lists the label, color, and meaning of each LED indicator.
Table A-1. LED Indicators
Label
Color
Meaning
RUN
Green
Lit whenever a write access is made to DRAM.
If not lit, either the CPU is executing entirely out
of the on-chip cache, or the CPU is halted.
SYSFAIL
Red
Lit whenever the VME SYSFAIL line is
asserted.
TEST
Yellow
Reflects the state of the PASS bit in the VXI
registers. Normally lit during the boot process
until the controller passes all of its self-tests. If it
remains lit, then PASS is 0 (zero), and the
controller has failed its self-test.
MASTER
Green
Lit when a VME access is made by this device
as a master.
SLAVE
Green
Lit when another VME device accesses the
memory of this controller.
SCSI
Green
Lit when the SCSI port is busy.
IDE
Green
Lit when the IDE disk is busy.
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