Kontron VMP2 - Manual (Page 108)

VMP2 VMP1-IO1 Module (Optional)
ID 24855, Rev. 02 Page A - 4 © 2002 PEP Modular Computers GmbH
A.2 Board Interfaces
PCI Expansion Connector
The PCI expansion connectors CON2/CON3 provides all the necessary signals for data
transfer as defined by PCI Specification Rev. 2.1.
PMC Interface
The PMC interface provides an easy way to extend the VMP2 via the wide array of inter-
faces and functions which are available on PMC modules produced by the entire range
of PMC vendors. PMC connectors provide a 32-bit wide PCI data path with a speed of
up to 33MHz which is routed to the onboard connectors Jn1 and Jn2. These connectors
also provide the power supply for the PMC module. The interface has been designed to
comply with the IEEE 1386.1 specification which defines a PCI electrical interface for
the CMC (Common Mezzanine Card) form factor.
Power Supply
The onboard DC/DC converter of the VMP1-IO1 also produces 3.3V supply voltage
from the 5V provided on the VME backplane. This is necessary in order to create com-
patibility with the PMC modules whose power consumption is in excess of what the
baseboard (VMP1-IO1) can provide.