XMC Overview

WOLF develops XMC (Switched Mezzanine Card) graphics cards for video capture, process, encode and display. WOLF XMC video graphics boards can include an embedded NVIDIA GPU and/or Xilinx FPGA. Rugged air cooled and conduction cooled options are available for WOLF's XMC modules.

 

WOLF can provide support for virtually any video signal including 12/6/3G-SDI, CoaXPress, ARINC 818-2/3, STANAG-3350 A/B/C, CVBS, RS170, RS343, LVDS, DVI, DisplayPort, Camera/Channel Link, and custom. Contact us to discuss your specific requirements.

 

WOLF XMC Products Table

Product Name WOLF Number Status GPU/Processor Processing Speed (TFLOPS) Memory (GB)  Outputs - DisplayPort Outputs - SDI/Digital, Analog, Other Inputs
XMC-A2000E-VO 3476 In Development NVIDIA A2000E 8.25 8 3 rear, 2 front    
XMC-A2000E-FGX-IO 3470 In Development  NVIDIA A2000E 8.25 8 2 4 SDI, 2 Analog  4 SDI, 2 Analog, 2 stereo audio
XMC-P2000E-VO 3176 In Production NVIDIA P2000E 2.3 4 4
XMC-P2000E-SDI-CV 3177 In Production NVIDIA P2000E 2.3 4 4 2 SDI, 1 Analog
XMC-P2000E-SDI-2IO 3170 In Production NVIDIA P2000E 2.3 4 3 2 SDI 2 SDI, 2 Analog
XMC-TK1-FGX 30TP In Production NVIDIA Tegra K1 0.325 4   2 SDI, 1 HDMI 2 SDI, 2 Analog
XMC-FGX2-SDI-4IO 3180 In Production WOLF FGX2 4 12G-SDI, VGA 2 CXP, 2 12G-SDI, 3 Analog, 2 DP
XMC-FGX2-SDI-8IO 3183 In Development WOLF FGX2       2 12G-SDI, 6 3G-SDI 2 12G-SDI, 6 3G-SDI, 2 Analog, 2 HDMI
XMC-FGX-SDI-IO 3081 In Production WOLF FGX       2 SDI, 3 Analog 2 SDI, 5 Analog
XMC-FGX-SDI-4IO 3080 In Production WOLF FGX 4 SDI, 2 Analog 2 SDI, 4 Analog, DP
XMC-E8860-SDI-CV 3097 End of Life AMD E8860 0.768 2 3 3 SDI, 1 Analog
XMC-E8860-VO 0258 End of Life AMD E8860 0.768 2 4 1 SVGA
XMC-E9171-VO 3196 End of Life AMD E9171 1.25 4 5

 
See the WOLF XMC Products Grid

 

XMC Information

Rugged WOLF XMC video graphics cards

The XMC mezzanine format defined in ANSI/VITA 42.0-2016 is an evolution of the previous PMC (PCI mezzanine card) format. The XMC specification extends PMC with the addition of new connectors which support gigabit serial interfaces plus alternative I/O standards. 

The theoretical maximum power available on an XMC module is 100W. However, practical considerations normally require a lower XMC maximum operating power, with 25W being a typical maximum operating power.

The XMC connector is a pin-socket connector with 114 pins arranged in a 6 x 19 array. A single-width XMC module can have one or two 114 pin connectors (P15 and P16). It can optionally include PMC connectors (P11 to P14) for legacy compatibility. Standard XMC dimensions are 74mm by 149mm. There are also provisions for a shortened depth card layout, with 124 to 139mm depths.

  

The primary XMC connector (P15) is reserved for serial links, power, and other pre-defined functions. The secondary XMC connector (P16) provides user-defined pins which can include video I/O.

XMC 1.0 connectors are defined in the VITA 42 XMC baseline specification, while XMC 2.0 connectors are defined in VITA 61. 

  • The XMC 1.0 and 2.0 connectors use the same footprint but are not intermateable.
  • The XMC 2.0 connector was designed to be more rugged compared to the XMC 1.0 connector.
  • The XMC 1.0 and 2.0 connectors have been electrically characterized to support different frequencies (and therefore, data throughputs). 
    • XMC 1.0 supports 3.125 GHz which permits up to 6.25 Gb/s. This can support for PCIe 1.0 (with a transfer rate per lane of 2.5 GT/s) and PCIe 2.0 (with a transfer rate per lane of 5.0 GT/s).
    • XMC 2.0 supports 5 GHz which permits up to 10 Gb/s, providing support for PCIe 3.0 (with a transfer rate per lane of 8.0 GT/s).
    • The connector detailed in the newly published VITA 88 (XMC+) standard will support PCIe Gen4 and Gen 5 transfer rates.
  • The XMC 2.0 connector is an off-white color, to make it easy to visually differentiate it from the black XMC 1.0 connector.
  • The standard stacking height of an XMC 1.0 connector is 10mm (allowing it to fit on a carrier board with a slot pitch of 0.8 inch) or 12 mm (allowing it to fit on a carrier board with a slot pitch of 1.0 inch).
  • The XMC 2.0 connector can use the same stacking height as XMC 1.0 (10mm or 12mm) or can use a 15mm or 18mm stack height.

 

PCIe Transfer Rate, Throughput and XMC Support

     PCIe Lanes   XMC 1.0 Support   XMC 2.0 Support   XMC+ Support 
 PCIe 1.0   PCIe 2.0   PCIe 3.0   PCIe 4.0 
 Transfer rate per lane in each direction (GT/s) *   x1   2.5   5.0   8.0   16.0
 PCIe Encoding Scheme and Overhead   

 8b/10b
 20%

 8b/10b
 20%
 128b/130b
 1.54%
 128b/130b
 1.54%

 Throughput in each direction  (GBytes/s) ** 

  x1   0.25   0.5   0.98   1.97
  x4   1.0   2.0   3.94   7.88
  x8   2.0   4.0   7.88   15.75

* Transfer rate is in giga transfers per second (GT/s) and it includes the overhead transfers used for encoding. The overhead transfers do not provide Throughput.
** Throughput indicates the data transfer speed without the encoding overhead. For example, PCIe 1.0 uses an encoding scheme with a 20% overhead. That means a transfer rate of 2.5 GT/s provides 80% of that in throughput, that is 2.0 Gbits/s of data throughput, or 0.25 GBytes/s of data throughput.

 

 

 

 

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