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FAQ
How should user do with the excessive power consumption when GPIO is configured as Quasi-bidirectional mod in the M480 series? Issue Date：2018-11-28
When GPIO is configured as Quasi-bidirectional mode, it consumes 65uA leakage from pull-up resister fixedly as long as the GPIO pin state is LOW.
User should disable Quasi-bidirectional mode to reduce leakage current when the GPIO pin state is low. If the low state is driven by external voltage, the GPIO should be configured as Input mode or Open-drain Mode. If the GPIO pin drives a low output, the GPIO should be configured as Output mode.
| Products: | Microcontrollers ,Arm Cortex-M4 MCUs |
|---|---|
| Applications: | |
| Function: | Peripherals,I/O,GPIO,System Operation,Deep Power-down,Idle mode (Sleep),Power-down |