PMCspan Details

CarrIEr BoarDS

Emerson offers a full line of PowerPC® microprocessor

based VME products which can be custom configured

for specific applications via on-board PMC slots. The

PMCspan expands this capability to further increase

customizing alternatives. It is compatible with Emerson’s

PowerPlus VME series. For further information on

these host CPUs, contact your local sales representative.

ProDuCT oFFErIng

In order to support the increased PCI bus loading

associated with additional PMCs, PMCspan uses the

PLX6150. This PCI-to-PCI interface bridge supports a

32-bit primary bus interface and a 32-bit secondary

bus interface. PMCspan mates directly with the host

CPU via the separate PCI expansion connector.

When the maximum of two PMCspan modules are stacked

together, the top board does not require a second PCI

to-PCI interface bridge. Software views this secondary

module as an extension to the primary PMCspan.