STM32 GPIO Lecture 16 : GPIO Pull-up and Pull-down registers

GPIO Pull-up and Pull-down registers

 

GPIO Pull-up and Pull-down registers are used to control the internal or external pull-up and pull-down registers. An entire register divide into 16 groups.

GPIO Pull-up and Pull-down registers
Figure. GPIO Pull-up and Pull-down register

 

These bits are written by software to configure the I/O pull-up or pull-down

00: No, pull-up, and pull-down.

01: Pull-up.

10: Pull-down.

11: Reserved.

 

In the following article, let’s see GPIO Input data register.

 

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