- Arithmetic
- Bit Manipulation
- Bus Operation (Rabbit 3000, 4000)
- Character
- Data Encryption
- Direct Memory Access (Rabbit 4000, 5000)
- Dynamic Memory Allocation
- ECC
- Error Handling
- Extended Memory
- Fast Fourier Transforms
- File Compression
- File System, FAT
- File System, FS1
- File System, FS2
- File System, Registry
- Flash, NAND
- Flash, Parallel
- Flash, SD
- Flash, Serial
- Floating-Point Math
- Global Positioning System
- HDLC Protocol (Rabbit 3000, 4000, 5000)
- I/O
- I2C Protocol
- Interrupts
- Logging Subsystem
- MD5
- MicroC/OS-II
- Miscellaneous
- Multitasking
- Number-to-String Conversion
- Partitions
- Pulse Width Modulation (Rabbit 3000, 4000, 5000)
- Quadrature Decoder (Rabbit 3000, 4000, 5000)
- Rabbit 3000, 4000
- Rabbit 3000, 4000, 5000
- Rabbit 4000, 5000
- Real-Time Clock
- Serial Communication
- Serial Packet Driver
- Servo Control (Rabbit 3000, 4000)
- SPI
- Stdio
- String Manipulation
- String-to-Number Conversion
- System
- User Block
- VBAT RAM (Rabbit 4000, 5000)
- Watchdogs