Proposed Changes to PC/104-Plus and the PCI-104 PCI Bus
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The PC/104 Embedded Consortium has commissioned the Technical Committee to revise the specifications for the PC/104-Plus and PCI-104 buses. A proposed change is to add a fourth bus master slot to the bus instead of having slots 3 and 4 share a bus master position. This will allow systems to have four bus master add-in cards and will make all the slots the same. I have asked the Technical Committee Chairman, Dr. Paul Haris of RTD Embedded Technologies, to explain the technical details of this change and the impact it might have on existing boards and systems. Here is his reply.
Reprinted with permission from PC/104 Embedded Solutions/Fall 2003. Article © OpenSystems Publishing.