SEW MPB51A055-503-00 Industrial module

To produce the desired configuration and ensure proper operation of the MVME172LX, you may need to carry out certain hardware modifications before installing the module. The MVME172LX provides software control over most options: by setting bits in control registers after installing the module in a system, you can modify its configuration. (The MVME172LX registers are described in Chapter 3 under ENV – Set Environment, and/or in the MVME172 VME Embedded Controller Programmer's Reference Guide as listed in “Related Documentation” in Appendix E.) Some options, however, are not software-programmable. Such options are controlled through manual installation or removal of header jumpers or interface modules on the base board.

Turn the system’s power off 

before you perform these procedures. Failure to turn the power off before opening the enclosure can result in personal injury or damage to the equipment. Hazardous voltage, current, and energy levels are present in the chassis. Hazardous voltages may be present on power switch terminals even when the power switch is off. Never operate the system with the cover removed. Always replace the cover before powering up the system

Items in brackets are factory default settings. J13 is a two-pin header to access the THERM1 and THERM0 pins on the M68060. These pins are connected to an internal thermal resistor that can be used to obtain information about the average temperature of the die. J13 is not configurable.

System Controller Select Header (J1)

 The MVME172LX is factory-configured as a VMEbus system controller (i.e., a jumper is installed across pins 1 and 2 of header J1). Remove the J1 jumper if the MVME172LX is not to be the system controller. Note that when the MVME172LX is functioning as system controller, the SCON LED is turned on. Note On MVME172s without the optional VMEbus interface (i.e., with no VMEchip2 ASIC), the jumper may be installed or removed without affecting normal operation.

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