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Functional Description
3
PMC Slots 1 and 2 (Double-Width PMC)
PMC slots 1 and 2 with a double-width PMC have the following
characteristics:
PCI Expansion
The PMCspan expansion module connector, J6, is a 114-pin Mictor
connector. It is located near P2 on the primary side of the MVME240x. Its
interrupt lines are routed to the MPIC.
VMEbus Interface
The VMEbus interface is implemented with the CA91C142 Universe
ASIC. The Universe chip interfaces the 32/64-bit PCI local bus to the
VMEbus.
The Universe ASIC provides:
❏ The PCI-bus-to-VMEbus interface
❏ The VMEbus-to-PCI-bus interface
❏ The DMA controller functions of the local VMEbus
The Universe chip includes Universe Control and Status Registers
(UCSRs) for interprocessor communications. It can provide the VMEbus
system controller functions as well. For detailed programming
information, refer to the Universe User’s Manual and to the discussions in
the MVME2400 Series VME Processor Module Programmer's Reference
Guide.
Mezzanine Type PCI Mezzanine Card (PMC)
Mezzanine Size
Double width, standard depth (150 mm x 150 mm)
with front panel
PMC Connectors
J11 to J14 and J21 to J24 (32/64-bit PCI) with front
and rear I/O
Signaling Voltage V
io
= 5.0Vdc
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