The pin assignment figures and tables describe the pinouts for the product variants of the device.
The nRF54LM20A and nRF54LM20B device provides flexibility regarding GPIO pin routing and configuration. Some pins have limitations or recommendations on how the pin should be configured or what it should be used for.
As a general rule, peripherals must use GPIO pins in their own domain, and can be used for all peripheral functions when selected in the peripheral's PSEL register. Serial peripherals must use pins from the same port. Note the dedicated clock pin requirements. The dedicated clock pin requirements are described in Clock pins. Some device functions must use specific pins, as listed in Pin assignments.
The block diagram shows which peripheral and port belong together, see Block diagram.
The different GPIO ports have different properties. For details, see GPIO — General purpose input/output.