Artesyn MVME51005E SBC Installation and Use (July 2014) - Manual (Page 120)

Programming the MVME5100
MVME51005E Single Board Computer Installation and Use (6806800A38D) 122
7.3 Programming Considerations
Good programming practice dictates that only one MPU at a time have control of the
MVME5100 control registers. Of particular note are:
 Registers that modify the address map
 Registers that require two cycles to access
 VMEbus interrupt request registers
7.3.1 PCI Arbitration
There are seven potential PCI bus masters on the MVME5100:
 Hawk ASIC (MPU/PCI bus bridge controller)
 Winbond W83C554 PIB (PCI/ISA bus bridge controller)
 DECchip 21143 Ethernet controller
 Universe II ASIC (PCI/VME bus bridge controller)
 PMC Slot 1 (PCI mezzanine card)
 PMC Slot 2 (PCI mezzanine card)
 PCI Expansion Slot