Phytec phyCORE-PXA255, Hardware Manual

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Push Buttons/LEDs
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PHYTEC Meßtechnik GmbH 2004 L-657e_0
65
15 Push Buttons and LEDs
Four push buttons and 3 LEDs are integrated on the Development
Board and corresponding Expansion Board serving as user input and
display elements. Push Button S2 on both the Expansion Board and
the Development Board serves as a reset button, push button S1 is
connected with the GPIO0 signal for both boards and can be used
freely. The 4 LEDs are controlled with a low level over the
PowerLatch. It is important that the other PowerLatch settings are not
changed during a write to these LEDs.
USB
OTG
MultiMediaCard
CompactFlash Card
D5 D4
D2 D1
Reset Button
GPIO Button
D3
Sound
Figure 36: Location of Push Buttons and LEDs (Side View)