ORT/ORSO42G5 High-Speed SERDES Board
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ORSO42G5-EV (pdf) |
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ORT42G5-EV |
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ORT/ORSO42G5 High-Speed SERDES Board User’s Guide May 2004 ebug05_01 Lattice Semiconductor ORCA ORT/ORSO42G5 High-Speed SERDES Board User’s Guide Introduction This user’s guide describes the Lattice High-Speed SERDES Board for the ORCA ORT/ORSO42G5 device, a stand-alone evaluation PCB that provides a functional platform for device feature demonstrations. The board includes the following features: • Power connections • programming support • On-board and external reference clock sources • Discrete high-speed interface SMA test points and clock connections • ORCAstra Demonstration Software interface • Varied high-speed layout structures The contents of this user’s guide include top level functional descriptions of the various portions of the evaluation board, descriptions of the on-board connectors, diodes and switches and a complete set of schematics for version of the board. Figure 1 shows the functional partitioning of the board. Figure ORT/ORSO42G5 High-Speed SERDES Board Benchtop Power Supply Jacks ORCAstra Interface Benchtop Power Supply Jacks HDIN/HDOUT Test SMAs Reference Clocks Generic FPGA I/O Switches & LEDs ispVM Programming Lattice Semiconductor ORCA ORT/ORSO42G5 High-Speed SERDES Board User’s Guide An 8-pin connector that provides the interface to the cable. Pin Number Pin 1 Pin 2 Pin 3 Pin 4 Pin 5 Pin 6 Pin 7 Pin 8 Signal VDD TDO TDI N/C N/C TMS GND TCK A 7-pin serial connector used for serial Pin Number Pin 1 Pin 2 Pin 3 Pin 4 Pin 5 Pin 6 Pin 7 Signal GND NC PROGRMN DONE D0 CCLK VDD Header Connections Standard headers are provided for interconnecting points on the board. This can be accomplished with IDC connectors and ribbon cable for bus connections or pin socket patch cords such as Pomona Electronics #5948 jumpers shunts are also used for board selections such as Sullins Electronics P/N SPC02SYAN D1, D2 These LEDs indicate the status of to the FPGA DONE/INITN status pins. When D2 is illuminated this indicates the successful completion of When D1illuminates, this indicates that programming was aborted or reinitialized. Lattice Semiconductor ORCA ORT/ORSO42G5 High-Speed SERDES Board User’s Guide J23, 25 These standard 3x1 headers provide connections of the PROGRAMN and RESETN control pins. For standard evaluation board use, a 2-pin shunt should be placed across pins 2 and This will connect the pins to on-board push-button switches. Pin Number Pin 1 Pin 2 Pin 3 Pin 1 Pin 2 Pin 3 Signal Global PROGRMN Local Global RESETN Local |
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