OLIMEX© 2015
A20-SOM user's manual
CHAPTER 3: BOARD DESCRIPTION
3. Introduction to the chapter
Here you get acquainted with the main parts of the board. Note the names used on the board might
differ from the names used below to describe them. For the actual names check the A20-SOM board
itself.
3.1 Layout (top view)
The picture below shows the top side of the A hardware revision of board and highlights the most
important parts:
Please note that there might be differences in the layout of top of the board compared to the latest
revision. One of the notable changes introduced in hardware revision C of the design, is the addition
of GPIO-6 row of pinholes that provides easier access to some additional pins. The general routing
and memory positions are also adjusted.
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