Inova ICP-PII user manual CompactPCI Backplane

InterfacesICP-PIII

3.1 CompactPCI Backplane

The form factor defined for CompactPCI boards is based upon the Euro-card industry standard. Both 3U (100 mm by 160 mm) and 6U (233 mm by 100 mm) board sizes are defined. A Com- pactPCI system is composed of up to eight CompactPCI cards. The CompactPCI backplane con- sists of one System Slot, and up to seven Peripheral Slots.

The System Slot provides arbitration, clock distribution, and reset functions for all boards on the bus. The System Slot is responsible for performing system initialization by managing each local board’s IDSEL signal.

Physically, the System Slot may be located at either end of the backplane but Inova have placed theirs on the right to cater for physical expansion due to heat-sink, hard disk, extended function- ality etc. The Peripheral Slots may contain simple boards, intelligent slaves, or PCI bus masters.

Note:

Inova’s 3U CompactPCI CPU boards can be used as either master or slave boards i.e. occupying either the system slot or the peripheral slot. The choice of PCI/PCI bridge (multiprocessing or standard) decides which of the slots is

used.

Page3-10 ©2002 Inova Computers GmbH Doc. PD00581013.004