PCI interface reflective memory card

The PCI interface reflective memory card is a hardware device used for real-time networks. It integrates reflective memory on the card and connects to the computer via the computer's PCI slot.

This reflective memory card has the following features and advantages:

1.High-speed fiber optic network: Provides high-speed data transmission with a high fiber optic network transmission rate.

2.Specific PCI bus compatibility: Such as 33MHz 64-bit/32-bit compatible PCI bus, supporting 3.3V and 5.0V levels; or 66MHz 64-bit/32-bit compatible PCI bus, supporting 3.3V levels.

3.No processor involvement in network transmission: The data transmission process does not consume CPU resources.

4.Optional redundant transmission mode: Improves the reliability of data transmission.

5.Supports a large number of nodes: Up to 256 nodes, with data shared among multiple nodes.

6.Long multimode transmission distance: Multimode transmission distance can reach 300 meters, while single-mode transmission distance can reach 10 kilometers (may vary by model).

7.Automatic adjustment of packet size: Packet size can be automatically adjusted between 4 and 64 bytes.

8.Onboard memory with error checking: For example, 128MB/256MB onboard memory with error checking.

9.Independent DMA channel.

10.Network interrupts with data.

11.Endianness conversion for different architectures within the same network.

12.Configurable PIO window size.

13.Wide operating system support: Such as Windows, Linux, VxWorks, etc.

When using a PCI interface reflective memory card, hardware installation (inserting the card into the computer's PCI slot, and connecting multiple cards via fiber optics if applicable) and software installation (installing the corresponding drivers) are required.

The networking methods for reflective memory cards mainly include ring and star topologies. In ring networking, the cards are connected sequentially via fiber optics to form a ring structure, with data transmitted sequentially around the ring. In star networking, a reflective memory hub device is used for data forwarding, similar to a switch, to ensure data consistency across the same memory address space on all cards in the star network.

PCI interface reflective memory cards are suitable for systems with high requirements for data real-time performance and communication performance, such as industrial control, aerospace, and other fields, enabling high-speed, real-time data sharing and communication among multiple devices or systems.

Common PCI interface reflective memory cards include GE's original PCI-5565PIORC series, with specific models such as 128M multimode fiber (PCI-5565PIORC-110000), 128M single-mode fiber (PCI-5565PIORC-111000), 256M multimode fiber (PCI-5565PIORC-210000), 256M single-mode fiber (PCI-5565PIORC-211000), etc. Different models may vary in transmission distance, memory size, and other aspects, and can be selected based on specific needs. In practical applications, attention should be paid to the card's installation specifications and settings, as well as ensuring the correct installation and compatibility of drivers.