iCE40 Ultra Breakout Board
Evaluation Board User Guide
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FPGA-EB-02034-1.2 3
Contents
Acronyms in This Document ................................................................................................................................................. 5
1. Introduction .................................................................................................................................................................. 6
2. Features ........................................................................................................................................................................ 6
3. iCE40 Ultra Device ........................................................................................................................................................ 8
4. Software Requirements ................................................................................................................................................ 8
5. Demonstration Design Shunts ...................................................................................................................................... 8
6. Clock Sources ................................................................................................................................................................ 9
7. Board Power ................................................................................................................................................................. 9
8. Board Configuration and Programming ...................................................................................................................... 10
9. Test Points .................................................................................................................................................................. 11
10. RGB LED Demonstration Design and User Interface ............................................................................................... 13
11. User Interface Serial Communication Interface ..................................................................................................... 15
11.1. LED Control through SPI .................................................................................................................................... 15
11.2. SPI Protocol ....................................................................................................................................................... 15
11.3. Register Definitions ........................................................................................................................................... 15
12. Ordering Information .............................................................................................................................................. 18
Technical Support Assistance .............................................................................................................................................. 19
Appendix A. Schematic Diagrams ....................................................................................................................................... 20
Appendix B. Bill of Materials............................................................................................................................................... 26
Revision History ................................................................................................................................................................... 29
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