esd electronics, Inc. announces the availability of a VME Carrier Board for PMC modules, which allows two PMC modules to piggyback on one board. This gives VME users enhanced flexibility in designing with both PMC and VME technology. This unique board is available off-the-shelf at prices competitive with less flexible products. The VME-bus PMC-CADDY is a VME64-based board which can carry up to two PMC modules of normal size or one double-sized module. Tundra’s VME-PCI bridge UNIVERSE CA912042 is used for the VMEbus connection, allowing the board to operate either as slave or 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, with 32 address signals on the VMEbus. The VMEbus interrupt can be applied to any of the 7 interrupt-request lines. The board is connected to the VMEbus by two 160-pin VG-connectors on VME64 extensions. esd has designed both PMC plug-in units according to the draft norm IEEE P1386/Draft 2.0 (except for the standard I/O pin routing), so all PMC modules currently on the market can be inserted. Every plug-in unit of the PMC-CADDY also 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.• VMEbus access: master or slave function, A32, A24, A16; D8, D16, D32 • Temperature: 0...50 ?C (Order no.: V.1911.01, V.1911.11, V.1911.10) • Humidity:max. 90 %, non-condensing • Board size:160 mm x 233 mm • VME dimensions:6 U height, 4 HP width • Standard:IEEE P1386 / draft 2.0 • Size:two single size or one double size module • Voltage level:3.3 V or 5 V (signal level)
