The PMC Module provides I/O expansion and flexibility by allowing customers to add a wide range of I/O interfaces to Cyclone's CompactPCI products. Cyclone's PCI and CompactPCI cards support one or two modules on a board. Designers can mix and match standard and custom modules to meet unique I/O requirements.
The PMC Module is an IEEE standard (IEEE 1386). The standard uses the PCI bus as an electrical standard, providing 32-and 64-bit transfers at 33 MHz clock speeds. For the PMC-60, Cyclone has augmented the standard to support more than one PCI agent on a PMC Module without the need for a PCI-PCI bridge. Thus, this particular Module requires a superset of PMC signals from the host board compared to a standard PMC and is thus only compatible with host providing the additional PCI select lines to the PMC connectors. This is the only Cyclone PMC module with this unique requirement.