Kontron VMP3 - Manual (Page 139)

VMP3 VMP1-IO1 Module
ID 29230, Rev. 01 © 2005 Kontron Modular Computers GmbH Page B - 3
29230
.01.UG.VC.050727/091442
P R E L I M I N A R Y
B. VMP1-IO1 Module
B.1 Overview
The VMP1-IO1 module has been designed to provide an effective gateway to the world of PMC
modules. Although developed for the VMP1, this module is suitable for use with the VMP3 and
thus opens up a broad range of expansion possibilities.
PMC modules are renowned for their flexibility and versatility of use. They afford the user wide
ranging system-independent solutions by means of easily interchanged or upgraded mezza-
nine add-on modules. The VMP1-IO1 has been designed to maximize the advantages provid-
ed by PMC modules in a 3U environment.
A special feature of the VMP3 is the ability to cascade two of these IO1 modules on top of one
another. This means that the VMP3 is able to carry any two PMC modules. Tremendous ad-
vantages in terms of expandability and flexibility are thus made available to the user as a result
of the addition of this capability to the board’s many outstanding features.
The VMP1-IO1 is a 3U non-intelligent, passive CPCI-like carrier board with one PMC slot.
Some of the Outstanding Features of the VMP1-IO1:
• 32 Bit / 33MHz PCI-bus on the PMC side
• supports the Interrupts INTA, INTB, INTC and INTD
• supports all the signals of the PCI-bus on its connectors Jn1 (CON2) and Jn2 (CON3)
• connectors to the mezzanine board include all the signals of a 33MHz, 32-bit, multi-mas-
ter PCI-bus, the power rails for 5V, 3.3V, V(I/O), and other specialized signals for board
detection
B.2 Board Interfaces
B.2.1 PCI Expansion Connector
The PCI expansion connectors CON2/CON3 provide all the necessary signals for data transfer
as defined by PCI Specification Rev. 2.1.
B.2.2 PMC Interface
The PMC interface provides an easy way to extend the VMP3 via the wide array of interfaces
and functions which are available on PMC modules produced by the entire range of PMC ven-
dors. 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.
B.2.3 Power Supply
The onboard DC/DC converter of the VMP1-IO1 also produces a 3.3V supply voltage from the
5V provided on the VME backplane. This is necessary in order to create compatibility with the
PMC modules whose power consumption is in excess of what the baseboard (VMP1-IO1) can
provide.