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Note
Any VMEbus access to the MVME162LX Embedded Controller while it
is in the reset state is ignored. If a global bus timer is enabled, a bus error
is generated.
EMC Compliance
The MVME162LX Embedded Controller was tested in an EMC-
compliant chassis and meets the requirements for Class B equipment. CE
compliance mark was achieved under the following conditions:
1. Shielded cables on all external I/O ports.
2. Cable shields connected to earth ground via metal shell connectors
3. Conductive chassis rails connected to earth ground. This provides
4. Front panel screws properly tightened.
For minimum RF emissions, it is essential that the conditions above be
implemented. Failure to do so could compromise the EMC compliance of
the equipment containing the module.
http://www.mcg.mot.com/literature
The GCSR allows a VMEbus master to reset the local bus.
This feature is very dangerous and should be used with
caution. The local reset feature is a partial system reset, not
a complete system reset such as powerup reset or
SYSRESET*. When the local bus reset signal is asserted, a
local bus cycle may be aborted. The VMEchip2 is connected
to both the local bus and the VMEbus and if the aborted cycle
is bound for the VMEbus, erratic operation may result.
Communications between the local processor and a VMEbus
master should use interrupts or mailbox locations; reset
should not be used in normal communications. Reset should
be used only when the local processor is halted or the local
bus is hung and reset is the last resort.
bonded to a conductive module front panel.
the path for connecting shields to earth ground.
Software Initialization
1-51
1
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