Appendix A: Glossary
The embedded ecosystem is full of different protocols, hardware components and vendor-specific things that use their own terms and abbreviations. This Glossary attempts to list them with pointers for understanding them better.
| Term | Meaning |
|---|---|
| I2C | Sometimes referred to as I² C or Inter-IC. It is a protocol meant for hardware communication within a single integrated circuit. See i2c.info for more details |
| SPI | Serial Peripheral Interface |
| USART | Universal synchronous and asynchronous receiver-transmitter |
| UART | Universal asynchronous receiver-transmitter |
| FPU | Floating-point Unit. A 'math processor' running only operations on floating-point numbers |
| PAC | Peripheral Access Crate |