The GE Fanuc / SBS / Bit 3 617 PCI Bus to A32/D32 VMEbus with DMA Controller is an easy-to-use, cost effective way to share memory and special purpose boards between a PCI Local Bus computer and a VMEbus system. The Model 617 Adaptor provides high-speed data transfers between systems, and requires minimal software support. Linked by the Model 617 Adaptor, these two powerful computing environments become even more powerful and versatile. From the VMEbus side of the Adaptor, you can take full advantage of PCI system resources for VMEbus applications. And, because the Adaptor card is treated as any other processor on the VMEbus, the PCI system acting through the Adaptor can function as either a coprocessor or as the only bus master processor on the VMEbus. Consequently, the PCI system can directly control and monitor a wide variety of VMEbus cards and high-performance processors, as well as exchange interrupts with the VMEbus. The Model 617 Adaptor allows each bus to operate independently. The timing of the PCI bus and VMEbus is linked only when a memory or I/O reference is made to an address on one system that translates to a reference on the other. The integrity of the interface between Adaptor cards is maintained by parity checks on address, control and data lines.
The Model 617 supports bi-directional random access bus mastering from either system and also supports 16- and 32-bit data transfers using a built-in DMA Controller. The DMA Controller is a high-speed data mover engine that moves data between PCI system memory and the VMEbus at sustained data transfer rates up to 26 Megabytes per second (M Bytes/sec). It also allows a VMEbus DMA device (such as a disk controller) to DMA through the Adaptor directly into PCI memory at data transfer rates in excess of 10M Bytes/sec. Other Bit 3 Adaptors, supporting a wide variety of buses, can be used with Model 617 Adaptors to connect multiple computers and systems in star, daisy-chain or modified star/daisy-chain configurations.
Product Family: 617, Model 617, 617-202
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