Mvme240X Module; Pmcspan Expansion Mezzanine - Motorola MVME2400 Series Installation And Use Manual

Hardware Preparation and Installation
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MVME240x Module

PMCspan Expansion Mezzanine

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The MVME240x is a powerful, low-cost embedded VME controller and
intelligent PMC carrier board. It includes support circuitry such as ECC
SDRAM, PROM/Flash memory, and bridges to the Industry Standard
Architecture (ISA) bus and the VMEbus. The unit's PMC carrier
architecture allows flexible configuration options and easy upgrades. It is
also designed to support one or two PMCs, plus one or two optional PCI
expansion mezzanine modules that each support up to two PMCs. The unit
occupies a single VMEmodule slot (except when optional PCI expansion
mezzanine modules are also used).
The MVME240x interfaces to the VMEbus via the P1 and P2 connectors,
which use the new 5-row 160-pin connectors as specified in the proposed
VME64 Extension Standard. It also draws +5V, +12V, and –12V power
from the VMEbus backplane through these two connectors. The +3.3V and
2.5V power, used for the PCI bridge chip and possibly for the PMC
mezzanine, is derived onboard from the +5V power.
Support for two IEEE P1386.1 PCI mezzanine cards is provided via eight
64-pin SMT connectors. Front panel openings are provided on the board
for the two PMC slots.
In addition, there are 64 pins of I/O from PMC slot 1 and 46 pins of I/O
from PMC slot 2 that are routed to P2. The two PMC slots may contain two
single-wide PMCs or one double-wide PMC. There are also two RJ-45
connectors on the front panel: one for the Ethernet 10BaseT/100BaseTX
interface, and one for the async serial debug port. The front panel also
includes reset and abort switches and status LEDs.
An optional PCI expansion mezzanine module or PMC carrier board,
PMCspan, provides the capability of adding two additional PMCs. Two
PMCspans can be stacked on an MVME240x, providing four additional
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