
System Considerations
System Considerations
Backplane Power Connections
The MVME187 needs to draw power from both P1 and P2 of the VMEbus backplane. P2 is also used for the upper 16 bits of data for
Memory Address Ranges
Whether the MVME187 operates as a VMEbus master or as a VMEbus slave, it is configured for 32 bits of address and for 32 bits of data (A32/D32). However, it handles A16 or A24 devices in certain address ranges. D8 and/or D16 devices in the system must be handled by the MC88100 software. Refer to the memory maps in the Single Board Computer Programmer's Reference Guide as listed in Related Documentation in Chapter 1.
DRAM Addressing
The MVME187 contains shared onboard DRAM whose base address is
Global Bus Timeout
If the MVME187 tries to access offboard resources in a
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