The General Purpose Output block routes a signal to the hardware's GPIO output. Each block is linked to one output channel.
Note: The block is only available for DSPs that include GPIO. To configure the hardware's GPIO input and outputs settings, see the processors Register Control Window.
Use the drop-down to select the hardware GPIO output that is assigned to the block.
Observe that as you drag more blocks to your schematic, your number of output channels available in the drop-down list decreases.