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Chapter 2: Board Components 2–21
Clock Circuitry
July 2014 Altera Corporation Arria V SoC Development Board
Reference Manual
Character LCD
The development board includes a single 10-pin 0.1" pitch single-row header that
interfaces to a 2 line × 16 character Lumex character LCD using standard I
2
C interface
connected to the HPS. The character LCD has a two headers that mount directly to the
board's 10-pin header, so it can be easily removed for access to components under the
display. You can also use the header for debugging, I
2
C expansion, or other purposes.
f For more information such as timing, character maps, interface guidelines, and other
related documentation, visit www.newhavendisplay.com.
Clock Circuitry
This section describes the board's clock inputs and outputs.
On-Board Oscillators
Figure 2–5 shows the default frequencies of all external clocks going to the
Arria V SoC development board.
Figure 2–5. Arria V SoC Development Board Clocks
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