Product category:
VMEbus Boards and Assemblies
News Release from: Concurrent Technologies | Subject: XM 510/x24
Edited by the Electronicstalk Editorial
Team on 01 April 2008
Mezzanine card boosts network density
The XM 510/x24 provides four network ports in a single-width XMC site on a suitable host board, such as CompactPCI, VXS, VPX or VME.
Concurrent Technologies has new a family of networking XMC mezzanine cards: the XM 510/x24 is a quad-port Gigabit Ethernet adapter supporting 1000Base-T, 100Base-Tx and 10Base-T Where performance, functionality and space are key elements, the XM 510/x24 provides four network ports in a single-width XMC site on a suitable host board, such as CompactPCI, VXS, VPX or VME
This article was originally published on Electronicstalk on 7 Aug 2008 at 8.00am (UK)
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The XM 510/x24 contains two Intel 82575EB Ethernet controllers.
Each controller implements two Ethernet ports and integrates (into a single device) the functionality of two Ethernet MACs, two 10/100/1000Mbit/s PHY transceivers and a x4 PCI Express interface.
The XMC host board's connection to the XM 510/x24's two Ethernet controllers is via a x4 PCI Express switch.
The four Ethernet ports can either connect to the front or to the rear panel.
Each MAC and LAN controller provides the host offloading and MAC functionality for its link.
The host offloading includes transmit and receive IP, TCP, and UDP checksum offloading, TCP segmentation and VLAN support.
The MAC controller provides IEEE802.3x flow control, 8Kbyte transmit and receive FIFOs to support jumbo frames and a 48Kbyte per-port packet buffer.
Each PHY provides the physical layer functionality for its link and contains the transmitters and receivers for full and half duplex operation at 10Base-T, 100Base-Tx and 1000Base-T operation.
Also provided is IEEE802.3ab auto-negotiation, auto MDI/MDI-X selection and polarity correction.
Internal loopback is available for self-diagnostic purposes.
The XM 510/x24 is a single-sise card and is compliant with the XMC (Switched Mezzanine Card) specification.
Each Ethernet controller connects to its own 128Kbyte in-circuit programmable Flash EPROM that includes PXE firmware.
For ease of integration the XM 510/x24 supports many of today's leading operating systems, including Linux, Windows XP, Windows XP Embedded, Windows 2000, LynxOS, QNX and VxWorks.
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