TMS320C674x/OMAP-L1x Processor General-Purpose Input/Output (GPIO) User's Guide (Rev. A)
Describes the general-purpose input/output (GPIO) peripheral in the TMS320C674x DSPs and OMAP-L1x Applications Processors. The GPIO peripheral provides dedicated general-purpose pins that can be configured as either inputs or outputs. When configured as an input, you can detect the state of the input by reading the state of an internal register. When configured as an output, you can write to an internal register to control the state driven on the output pin.
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