Front Panel Indicators (Ds1 - Ds4) - Motorola MVME162 User Manual

Operating Instructions
system controller. A local reset may be generated by the
power-up reset, a watchdog timeout, a VMEbus
the GCSR.
3
N
ote

Front Panel Indicators (DS1 - DS4)

There are eight LEDs on the MVME162 front panel:
,
LAN
FAIL
DS1.
STAT
Lights when a halt condition from the processor is detected. Part of DS1.
RUN
indicates one of the local bus masters is executing a local bus cycle. Part of
DS2.
SCON
VMEbus system controller. Part of DS2.
LAN
DS3.
FUSE
interface (the MVME162 supplies +12V power to the LAN Ethernet
transceiver interface through a fuse). Part of DS3.
SCSI
DS4.
VME
AS* line asserted by the VMEchip2) or when the board is accessed by the
VMEbus (VMEchip2 is the local bus master). Part of DS4.
3-2
For an MVME162 without the VMEbus option (i.e., with no
VMEchip2), the LCSR control bit is not available to reset the
module. In this case, the watchdog timer is allowed to time
out to reset the MVME162.
, , and .
FUSE SCSI VME
LED (red). Lights when the BRDFAIL* signal line is active. Part of
LED (yellow). Driven by the MC68040 status lines on the MVME162.
LED (green). Lights when the local bus TIP* signal line is low. This
LED (green). Lights when the VMEchip2 in the MVME162 is the
LED (green). Lights when the LAN chip is local bus master. Part of
LED (green). Lights when power is available to the transceiver
LED (green). Lights when the SCSI chip is local bus master. Part of
LED (green). Lights when the board is using the VMEbus (VMEbus
switch, a
RESET
*, or a control bit in
SYSRESET
, , ,
FAIL STAT RUN SCON
User's Manual
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