Motorola MVME5100 Manual Do Utilizador
PCI Local Bus
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1
PCI Local Bus
There are eight potential PCI bus masters on the MVME510x:
❏
Hawk ASIC (MPU/PCI bus bridge controller)
❏
Intel GD82559ER Ethernet controller (Port 1)
❏
Intel GD82559ER Ethernet controller (Port 2)
❏
Universe II ASIC (PCI/VME bus bridge controller)
❏
PMC Slot 1 (SCSI device on IPMC761 in PMC Slot 1)
❏
PIB device on IPMC761 in PMC Slot 1
❏
PMC Slot 2 (PCI mezzanine card)
❏
PCI Expansion Slot
PCI Arbitration Assignments for Hawk ASIC
The PCI arbitration is performed by the Hawk ASIC, which supports seven
external PCI masters, in addition to itself. Details on PCI arbitration can be
found futher on in this chapter (
external PCI masters, in addition to itself. Details on PCI arbitration can be
found futher on in this chapter (
The arbitration assignments for the MVME510x are shown in the
following table.
following table.
Table 1-6. PCI Arbitration Assignments
PCI Bus Request
PCI Master(s)
Request 0 (PARBI0)
Universe ASIC (VMEbus) PARBI0
Request 1 (PARBI1)
PMC Slot 1 (SCSI device on IPMC761 in PMC Slot 1)*
Request 2 (PARBI2)
PIB device on IPMC761 in PMC Slot 1*