User manual
Basys MX3™ Board Reference Manual 
Copyright Digilent, Inc. All rights reserved. 
Other product and company names mentioned may be trademarks of their respective owners. 
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5  User Buttons ................................................................................................................ 16 
5.1  Connectivity .................................................................................................................... 17 
5.2  Functionality ................................................................................................................... 17 
5.3  Shared Pins ..................................................................................................................... 18 
6  RGB LED ....................................................................................................................... 18 
6.1  Connectivity .................................................................................................................... 19 
6.2  Functionality ................................................................................................................... 19 
6.2.1  RGB LED Implemented Using PWM ........................................................................ 19 
6.2.2  RGB LED Implemented Using PDM ......................................................................... 20 
7  Seven-segment Display ................................................................................................ 20 
7.1  Connectivity .................................................................................................................... 22 
7.2  Functionality ................................................................................................................... 23 
8  LCD Module ................................................................................................................. 24 
8.1  Connectivity .................................................................................................................... 25 
8.2  Functionality ................................................................................................................... 26 
9  I
2
C Interface ................................................................................................................. 27 
10  Accelerometer ............................................................................................................. 28 
10.1  Connectivity ................................................................................................................ 28 
10.2  Functionality ............................................................................................................... 28 
10.3  Shared Pins ................................................................................................................. 29 
11  Serial Peripheral Interface ............................................................................................ 29 
11.1  SPI1 ............................................................................................................................. 29 
11.2  SPI2 ............................................................................................................................. 29 
12  Flash Memory .............................................................................................................. 30 
12.1  Connectivity ................................................................................................................ 30 










