General-Purpose Input/Output (Gpio) - Texas Instruments Concerto F28M35 Series Technical Reference Manual

This chapter describes the M3 GPIO and C28 GPIO functionality and GPIO mux configurations.
After a reset to the device, the M3 core controls all GPIOs except GPIO128 - GPIO135. The C28 core
always has control of GPIO128 - GPIO135. The GPIOCSELx register can be used to give the C28 core
control of any GPIO. If the M3 core has control of a GPIO, the M3 muxing options can be used, and if the
C28 core has control of a GPIO, the C28 muxing options can be used. Regardless of which core owns a
GPIO, the M3 core always controls the pull-down functionality of each GPIO except GPIO128 – GPIO135.
The C28 core controls the pull-down functionality of GPIO128 – GPIO135.
See the General-Purpose Input/Output (GPIO) and C28 General-Purpose Input/Output (GPIO) sections of
this chapter for more information.
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Topic
4.1

General-Purpose Input/Output (GPIO)

4.2 C28 General-Purpose Input/Output (GPIO)
336
General-Purpose Input/Output (GPIO)
General-Purpose Input/Output (GPIO)
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Copyright © 2012–2019, Texas Instruments Incorporated
SPRUH22I – April 2012 – Revised November 2019
SPRUH22I – April 2012 – Revised November 2019
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