Altera DE1-SoC - Page 89

DE1-SoC User Manual
88
www.terasic.com
March 14, 2014
Figure 6-1 Block diagram of GPIO demonstration
 Block Diagram of GPIO Interface
The HPS provides three general-purpose I/O (GPIO) interface modules. Figure 6-2 shows the block
diagram of GPIO Interface. GPIO[28..0] is controlled by the GPIO0 controller and GPIO[57..29] is
controlled by the GPIO1 controller. GPIO[70..58] and input-only GPI[13..0] are controlled by the
GPIO2 controller.
Figure 6-2 Block diagram of GPIO Interface
 GPIO Register Block
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