17. DIGITAL I/O
This page describes the Digital I/O specification on Gemini carrier card
Each digital I/O line can be individually configured to set the input or output direction. This enables the Digita I/O pins to be split as input and output. All lines can be individually read or written, enabling I/O peripherals configurations to be customized to suit application requirements. The output pins can be set as open-drain or push-pull.
Since the Digital I/Os are realized with USB to GPIO expander, the Digital I/Os do not support additional features such as edge detection on input, PWM features on output, etc, but can only be used to write and read logic high & logic low.
The Digital I/O pins are not 5V tolerant.
The CP2112 USB to I2C bridge is configured to be an HID device so separate drivers are not needed for this device.
The mapping table below represents DIO signals from CP2112 IC to J33 DIO connector.