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PCI GS Main Board
PCI SS Main Board
PCIe8 LX Main Board

More Telemetry/Telecom

RS422 Mezzanine

Data sheet / Specifications

Drivers and Software
Documentation

LVDS/RS422 Mezzanine

Features

• 33 LVDS- (standard) or RS422- (optional) input/output signals
• Transfer rates up to 90 megabits per second using a single channel; 64 megabits per second using all 16 channels
• Provides 16 high-speed DMA channels between LVDS or RS422 devices and a PCI or PCI Express bus computer
• Large Xilinx FPGA
• Two synchronous static memory banks up to 1M (PCI SS) or one memory bank up to 1 gigabyte (PCI GS)
• Fast transfers using a 66 MHz 32-bit PCI or 8-lane PCI Express
• Configuration file for 16 synchronous serial channels

Applications

• Telemetry receiver or transmitter
• Monitoring serial data communications
• Satellite ground station support

Description

The LVDS/RS422 is a mezzanine board for the PCI SS, PCI GS, or PCIe8 LX main board, and provides 33 differential LVDS or RS422 signals for either the PCI SS or PCI GS main boards. The LVDS/RS422 signals can be inputs or outputs in groups of four signals (two channels). The function of each signal is determined by the FPGA configuration file used on the main board.

The main board is supplied with FPGA configuration files that implement 16 synchronous serial channels. Each channel inputs or outputs a data signal on the edge of the associated clock. The data is stored in or sent from host memory using the PCI (PCI SS/GS) or PCI Express (PCIe8 LX) DMA. This configuration provides a simple, flexible solution for telemetry, satellite, and monitoring applications.

A large Xilinx Virtex™-E (PCI SS) or Virtex™-II Pro (PCI GS) FPGA and associated memory allows the user to implement an FPGA configuration and process large amounts of serial data. The separate high-speed 16-channel PCI DMA controller allows flexible access to host memory.