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=== GPIO ===
GPIO (General Purpose Input/Output) is a generic pin on a chip whose behavior (including whether it is an input or output pin) can be controlled (programmed) through software. Omap use CMOS voltage levels (1V8) and the pads are connected directly to it. Some Omap GPIO characteristics are:<br>
- Set the data input and output direction<br>- Configure GPIO pin to high or low states.<br>- Configure GPIO pins for interrupt control<br>- Enable and disable interrupts<br>- Enable and disable wakeup capability per GPIO pin.
More information go:
- [http://en.wikipedia.org/wiki/GPIO http://en.wikipedia.org/wiki/GPIO]
- [http://omappedia.org/wiki/GPIO http://omappedia.org/wiki/GPIO]
[[How to use GPIOs]] Example: [[What can I do with IGEP0020#How_to_handle_the_gpio-LED.27s]]
=== SPI ===
