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Pmcspan, Pmcspan -8 – Motorola MVME2400 User Manual

Page 48

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2-8

Computer Group Literature Center Web Site

Operating Instructions

2

PMCspan

A PMCspan front panel is pictured on the previous page. The front panel
is the same for all PMCspan models.

There are two PMC slots, labeled

PCI MEZZANINE CARD

, which support

either two single-wide PMCs or one double-wide PMC.

The PMCspan board has two sets of three 32-bit connectors for PMC
interface to a secondary PCI bus and a user-specific I/O. It also has a P1
connector and a 5-row P2 connector for power and VMEbus I/O.

The PMCspan has two green LEDs on its front panel, one for each PMC
slot, labeled

PMC2

and

PMC1

. Both LEDs are illuminated during reset. An

individual LED is illuminated whenever a PMC has been granted bus
mastership of the secondary PCI bus.

The right-most (lower) opening labeled

PCI MEZZANINE CARD

on the front

panel is Port 1.

The left-most (upper)opening labeled

PCI MEZZANINE CARD

on the front

panel is Port 2.