BeagleY-AI Pinout
GPIO 20 (PCM Data-In)
| Alt0 | Alt2 | Alt6 | Alt7 | Alt8 |
|---|---|---|---|---|
| MCASP0_AXR0 | AUDIO_EXT_REFCLK0 | EHRPWM1_B | GPIO1_10 | EQEP0_I |
- Physical/Board pin 38
- GPIO/BCM pin 20
- SoC pin F23
GPIO 20 is used by PCM to input data from an I2S audio device, such as a microphone.
The pin is also usable as a GPIO or hardware PWM.
