SPRUIM2H May 2020 – October 2023 AM2431 , AM2432 , AM2434 , AM6411 , AM6412 , AM6421 , AM6422 , AM6441 , AM6442
The MCU_GPIO0, GPIO[0-1] modules are hereinafter referred to as GPIO module.
This section describes the GPIO external connections (environment).
The general-purpose interface combines three GPIO modules for a flexible, user-programmable, general-purpose input/output (I/O) controller. The general-purpose interface implements functions that are not implemented with the dedicated controllers in the device and require simple input and/or output software-controlled signals. The GPIO allows a variety of custom connections and expands the I/O capabilities of the system to the real world.
The general-purpose interface can physically connect the device to a keyboard matrix and peripheral integrated circuits (ICs).
Figure 12-54 shows a typical application using the general-purpose interface.