Technical data

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1Introduction

Product Overview

PMCspan is a PMC carrier module that provides PCI expansion capability

for an MVME2300/MVME2600/MVME2700/MVME3600/ or

MVME4600 host VME processor module. The PMCspan has two PMC

slots which support either two single-wide PMC adapters or one double-

wide PMC adapter. Two PMCspan modules can be stacked on a host VME

processor, allowing up to four additional PMC adapters.

PMCspan Models

There are three PMCspan models:

❏ PMCspan-001: Primary PMC Carrier Module that attaches to the

MVME2600/2700/3600/4600 and provides two PMC slots. It

includes a DEC 21150 PCI-to-PCI bridge chip with 32-bit PCI

support and accepts a PMCspan-010 Secondary PCI Expansion

Module.

❏ PMCspan-002: Primary PMC Carrier Module that attaches to the

MVME2300 and provides two PMC slots. It includes a DEC 21150

PCI-to-PCI bridge chip with 32-bit PCI support, and accepts a

PMCspan-010 Secondary PCI Expansion Module.

❏ PMCspan-010: Secondary PMC Carrier Module that attaches to

either a PMCspan-001 or PMCspan-002 and provides two PMC

slots. The PMCspan-010 is identical to the PMCspan-001/-002

except that the PCI-to-PCI bridge chip, the Clock Configuration

logic, and the primary PCI expansion connector are not present.

All PMCspan models provide both front panel and VME bus I/O.