VME-Carrier Board for PMC Modules
Easy Expansion of VMEbus Systems
Add up to 2 PMC boards to your system
Connect to the field with P2-IO
Insert 2 single or 1 double size PMC module
Use options for P2 pin assignment and 3.3 V supply
High Bandwidth Connection between VME and PCI
Powerful VME-PCI bridge UNIVERSE CA91C142
4 level VME arbiter, address space up to A32/D32
VME64 extension connector
Master and slave capability
Reliable design - easy to handle and cost effective
Design for low power consumption and easy cooling
Approved in many industrial applications
Standard interfaces and form factors according to IEEE P1386 and IEEE 1014
Software libraries available
The VMEbus unit PMC-CADDY is a VME64-base board which can carry up to two PMC modules of normal size or one module of double size.
For the VMEbus connection the VME-PCI bridge UNIVERSE CA91C142 by Tundra with an internal clock rate of 33 MHz is used.
The CA91C142 is designed in a way that the board can either operate as slave or as master on the VMEbus. If the board operates as master, it supports a 4-level arbiter. The PMC-CADDY operates with a data width of up to 32 bits and with 32 address signals on the VMEbus. The VMEbus interrupt can be applied to any of the seven interrupt-request lines. The board is connected to the VMEbus by two 160-pin VG-connectors according to IEC603-xx on VME64 extensions. An active VMEbus-interrupt request is shown by a red LED in the front panel and a VMEbus access onto the board is shown by a yellow LED.
PMC Plug-In Units
Both PMC plug-in units are designed according to the draft standard IEEE P1386/Draft 2.0 (except the standard I/O pin routing). It is possible therefore to insert all PMC modules which are on the market. In addition to the connectors for the PMCaddress/data and control signals, every plug-in unit of the PMC-CADDY has an I/O-connector which applies the I/O signals of the PMC modules to VMEbus connector P2. Two different P2 pin assignments are available: In the standard configuration each P2-pin is only connected to one I/O-pin of the PMCmodules (acc. to PMC-Update of FORCETM, Table 1, Author: Wayne Fischer, Director of Strategic Programs CMC/PMC Working Groups Chair, 22.10.96).
In the option ‘-32P’ the pin assignment is acc. to IEEE P1386/Draft 2.0, Table 6-3. This pin assignment offers the connection of the two PMC-modules via P2, because several PMC-I/O-signals are shorted at P2.
The front panel of the PMC-CADDY has two holes for the front panels of the PMC modules. A blank cover for free plug-in units is included in the price.
Example libraries for the initialization of the board in C-Source-Code for VxWorks and OS-9 are available for a fee on a disk (MSDOS format). Drivers for further operating systems are available on request. Please state your operating system with the version number when you order.