3.1 GPIO Functionality

Some of the GPIO pins from ATA UHF products support multiple functions. Ensure that the port direction selected via the EEPROM device configuration matches the desired alternate function. For example, if using the TRPA signal for debugging, ensure the I/O pin is configured to be an output. Failure to follow this step might obstruct the expected function. The EEPROM configuration tool monitors the selection and indicates any mistake in the log window or by special marking of the function. Monitor the tool to detect the problem and find a solution.