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Lattice Semiconductor ORT8850 Tutorial

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ORT8850 Evaluation Board Tutorial
Overview
This tutorial will assist first-time users of the ORCA ORT8850 how to use the evaluation board to understand the device
features as well as the capabilities of the evaluation board. To use the tutorial, the user must have an installed copy of
ORCA Foundry 2001 software and an understanding of the ORCA Device Programming Download Cable which is
described in the Lattice Semiconductor technical note TN1009. Users should also reference the ORT8850 Evaluation Board
Users Manual.
The tutorial and the supporting design files can be downloaded from the design tools section of the Lattice web site at
http://www.latticesemi.com. The tutorial design was created for use as a template for future designs. This design includes
simple pattern generation for 8- ORT8850 LVDS channels and the appropriate register settings to enable the internal and
external communication links.
Getting Started
The following steps will make the proper board interconnections for power supplies, input signals, and output signals.
Add push-on jumper shunts for the following.
Connect short 20-contact IDC ribbon cable between J13 & J5
Connect single patch cable between J4.1 and J16.1
Jumper
Pin
J71
1
J77
1
J78
1
J51
3
J53
3
J55
1
J57
1
J59
1
J22
1
JP3
1
JP3
7
JP4
1
JP4
7
J26
1
J72
2
Lattice Semiconductor Corp. - -Proprietary
Use Pursuant to Company Instructions
Page 1
Pin
2
2
2
5
5
3
3
3
2
2
8
2
8
2
4

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Summary of Contents for Lattice Semiconductor ORT8850

  • Page 1 Overview This tutorial will assist first-time users of the ORCA ORT8850 how to use the evaluation board to understand the device features as well as the capabilities of the evaluation board. To use the tutorial, the user must have an installed copy of ORCA Foundry 2001 software and an understanding of the ORCA Device Programming Download Cable which is described in the Lattice Semiconductor technical note TN1009.
  • Page 2 After D19 lights the following LEDS will light sequence (Figure 1) D1, 11, 2, 12, 3, 13, 4, 14, 5, 15, 6 D15,16,17,18 D11,12,13,14 D5, 6, 9, 10 D1, 2, 3, 4 Lattice Semiconductor Corp. - -Proprietary Use Pursuant to Company Instructions Page 2...
  • Page 3 CON4 and CON3 can also be used to observe the signal integrity of the ORT8850 LVDS channels. A cable similar to one from W.L Gore P/N 2MMA3143-01 adapts the 2mm Z-Pack to individual SMA connectors and is useful to observe the LVDS channels or connect to other test devices.