Abaco Systems / SBS / Bit 3 85221511 PCI Adapter with DMA Controller Module

The Abaco Systems / SBS / Bit 3 85221511 is a PCI adapter module designed for high-speed data transfer applications, specifically facilitating communication between PCI and VMEbus systems. This module acts as a crucial component in enabling direct memory access (DMA) for efficient data movement. It allows for bi-directional random access bus mastering, meaning either the PCI or VMEbus can initiate and control data transfers. The integrated DMA controller is engineered to move data between PCI system memory and the VMEbus at sustained rates up to 26 Megabytes per second. Furthermore, it enables VMEbus DMA devices to transfer data directly into PCI memory at rates exceeding 10 Megabytes per second. This adapter is often part of a larger system, such as the Bit 3 Model 617, which connects PCI and VMEbus architectures, allowing the PCI system to act as a coprocessor or bus master on the VMEbus. Parity checks are employed to maintain interface integrity across address, control, and data lines.

### Technical Specifications

* **Product Name:** PCI Adapter with DMA Controller Module
* **Manufacturer:** Abaco Systems / SBS / Bit 3
* **Model Number:** 85221511
* **Part Number:** 85221511
* **BIOS Part Number:** 85221651
* **System Interface:** PCI (Peripheral Component Interconnect)
* **Bus Interconnect:** VMEbus
* **DMA Controller:** Integrated high-speed data mover engine
* **Data Transfer Rates:**
* Up to 26 Megabytes per second (MB/s) sustained from PCI system memory to VMEbus.
* Exceeding 10 Megabytes per second (MB/s) for VMEbus DMA devices transferring directly into PCI memory.
* **Bus Mastering:** Bi-directional random access bus mastering from either system (PCI or VMEbus).
* **Data Transfers:** Supports 16-bit and 32-bit data transfers.
* **Interface Integrity:** Parity checks on address, control, and data lines.
* **Configuration:** Often paired with a VMEbus module (e.g., as part of the Bit 3 Model 617).
* **Memory:** 128 KB SRAM (Note: Some sources indicate 64 KB SRAM for similar models, e.g., 85221510; specific memory for 85221511 is 128 KB SRAM).

### Interfaces

* **PCI Connector:** Standard PCI connector for host system connection.
* **VMEbus Interface:** Connects to the VMEbus system.

### Physical

* **Form Factor:** Typically a PCI form factor card.
* **Weight:** Approximately 3 lbs (shipped weight).

### Compatibility

* **System Architectures:** Facilitates communication between PCI and VMEbus architectures.
* **Software Support:** Requires supporting software, which typically includes a loadable device driver, example programs, and installation tools, simplifying portable code development for use with other SBS Bit 3 products. Software support is available for various platforms, including Windows 95, Windows NT, and Sun Solaris.

Why Choose Aumictech for Abaco Systems / SBS / Bit 3 85221511 PCI Adapter with DMA Controller Module?
At Aumictech, we specialize in supplying high-end PCI adapter and DMA controller modules. Whether you need high-speed data transfer solutions, seamless VMEbus and PCI integration, or robust bus mastering capabilities, our team ensures the Abaco Systems / SBS / Bit 3 85221511 PCI Adapter with DMA Controller Module delivers maximum performance for your application.