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[STM32F4xx] Only 16 GPIO under control?

hjm
Associate II

The STM32F4xx reference manual (RM0090) specifies under the GPIO main features section that there are "up to 16 I/Os under control" - does this mean I cannot control more than 16 GPIO pins or am I interpreting this incorrectly?

3 REPLIES 3
AvaTar
Lead

Where, exactly ?

And if so, it most probably refers to the size of one GPIO port.

The F4xx RefManual describes GPIO ports "numbered" from A to K, i.e. 11.

hjm
Associate II

Each bank supports 16 pins, this design is then replicated across multiple banks, A thru K, perhaps more or less usable depending on package

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