Abaco Systems / SBS / Bit 3 467-1 SBus to A32/D32 VMEbus with DMA Module
- Supports Both A25 and A28 SBus Slot Addresses
- DMA Modes Support Dual Port RAM
- DMA Controller Mode and Slave Mode DMA
The GE Fanuc / SBS / Bit 3 467-1 SBus to A32/D32 VMEbus with DMA Module is an easy-to-use, cost effective way to share memory and special purpose boards between a Sun SBus computer (SPARCstation) and a VMEbus system. The Model 467-1 Adaptor provides high-speed data transfers between systems, and requires minimal software support. Linked by the Model 467-1 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 SBus system resources for VMEbus applications. And, because the Adaptor card is treated as any other processor on the VMEbus, the Model 467-1 can function as either a coprocessor or as the only bus master processor on the VMEbus. Consequently, the SBus 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 467-1 Adaptor allows each bus to operate independently. The timing of the SBus 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.
Model 467-1 supports bi-directional random access bus mastering from either system and also supports 32-bit data transfers using a built-in DMA controller. The DMA controller is a high-speed data engine that moves data between the SPARCstation 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 SBus memory at data transfer rates in excess of 12M Bytes/sec. Actual performance rates are dependent on the capabilities of the specific SBus system and the speed of the VMEbus memory. Other Bit 3 Adaptors, supporting a wide variety of buses, can be used with Model 467-1 Adaptors to connect multiple computers and systems in star, daisy-chain or modified star/daisy-chain configurations.
Product Family: Model 467-1, 467-1, 467-1-202
Important Notice: Please note that any additional items included with this equipment such as accessories, manuals, cables, calibration data, software, etc. are specifically listed in the above stock item description and/or displayed in the photos of the equipment. Please contact one of our Customer Support Specialists if you have any questions about what is included with this equipment or if you require any additional information.