For the detailed information about Device Drivers for RX Family, please refer to "System development environment".
Device drivers for USB communication using USB interface with built-in microcomputer and USB ASSP
Block type Device Drivers for data flash embedded microcontrollers
Device Driver for SPI Compatible Serial Flash Memory
Device Drivers for SPI Bus Serial EEPROM R1EX25xxx Series and HN58X25xxx Series
Device Drivers for I2C Bus Serial EEPROM R1EX24xxx Series, R1EV24xxx Series and HN58X24xxx Series