Artesyn MVME51005E SBC Installation and Use (July 2014) - Manual (Page 24)

Hardware Preparation and Installation
MVME51005E Single Board Computer Installation and Use (6806800A38D) 26
1.2.3 Installation Considerations
The MVME5100 draws power from the VMEbus backplane connectors P1 and P2. Connector
P2 is also used for the upper 16 bits of data in 32-bit transfers, and for the upper 8 address lines
in extended addressing mode. The MVME5100 will not function properly without its main
board connected to VMEbus backplane connectors P1 and P2.
Whether the MVME5100 operates as a VMEbus master or as a VMEbus slave, it is configured for
32 bits of address and 32 bits of data (A32/D32). However, it handles A16 or A24 devices in the
appropriate address ranges. D8 and/or D16 devices in the system must be handled by the
processor software.
If the MVME5100 tries to access off-board resources in a nonexistent location and if the system
does not have a global bus time-out, the MVME5100 waits indefinitely for the VMEbus cycle to
complete. This will cause the system to lock up. There is only one situation in which the system
might lack this global bus time-out; that is when the MVME5100 is not the system controller
and there is no global bus time-out elsewhere in the system.
Note: Software can also disable the bus timer by setting the appropriate bits in the Universe II
VMEbus interface.
Multiple MVME5100 boards may be installed in a single VME chassis; however, each must have
a unique VMEbus address. Other MPUs on the VMEbus can interrupt, disable, communicate
with, and determine the operational status of the processor(s).
1.3 Installation
This section discusses the installation of PMCs onto the MVME5100, installation of PMCspan
modules onto the MVME5100, and the installation of the MVME5100 into a VME chassis.