| crt-static | Enables C Run-time Libraries to be statically linked. | ⛔️ | ⛔️ |
| addsubiw | Enable 16-bit register-immediate addition and subtraction instructions. | ✅ | ⛔️ |
| avr0 | The device is a part of the avr0 family. | ✅ | ⛔️ |
| avr1 | The device is a part of the avr1 family. | ✅ | ⛔️ |
| avr2 | The device is a part of the avr2 family. | ✅ | ⛔️ |
| avr25 | The device is a part of the avr25 family. | ✅ | ⛔️ |
| avr3 | The device is a part of the avr3 family. | ✅ | ⛔️ |
| avr31 | The device is a part of the avr31 family. | ✅ | ⛔️ |
| avr35 | The device is a part of the avr35 family. | ✅ | ⛔️ |
| avr4 | The device is a part of the avr4 family. | ✅ | ⛔️ |
| avr5 | The device is a part of the avr5 family. | ✅ | ⛔️ |
| avr51 | The device is a part of the avr51 family. | ✅ | ⛔️ |
| avr6 | The device is a part of the avr6 family. | ✅ | ⛔️ |
| avrtiny | The device is a part of the avrtiny family. | ✅ | ⛔️ |
| break | The device supports the `BREAK` debugging instruction. | ✅ | ⛔️ |
| des | The device supports the `DES k` encryption instruction. | ✅ | ⛔️ |
| eijmpcall | The device supports the `EIJMP`/`EICALL` instructions. | ✅ | ⛔️ |
| elpm | The device supports the ELPM instruction. | ✅ | ⛔️ |
| elpmx | The device supports the `ELPM Rd, Z[+]` instructions. | ✅ | ⛔️ |
| ijmpcall | The device supports `IJMP`/`ICALL`instructions. | ✅ | ⛔️ |
| jmpcall | The device supports the `JMP` and `CALL` instructions. | ✅ | ⛔️ |
| lpm | The device supports the `LPM` instruction. | ✅ | ⛔️ |
| lpmx | The device supports the `LPM Rd, Z[+]` instruction. | ✅ | ⛔️ |
| memmappedregs | The device has CPU registers mapped in data address space. | ✅ | ⛔️ |
| movw | The device supports the 16-bit MOVW instruction. | ✅ | ⛔️ |
| mul | The device supports the multiplication instructions. | ✅ | ⛔️ |
| rmw | The device supports the read-write-modify instructions: XCH, LAS, LAC, LAT. | ✅ | ⛔️ |
| smallstack | The device has an 8-bit stack pointer. | ✅ | ⛔️ |
| special | Enable use of the entire instruction set | ✅ | ⛔️ |
| spm | The device supports the `SPM` instruction. | ✅ | ⛔️ |
| spmx | The device supports the `SPM Z+` instruction. | ✅ | ⛔️ |
| sram | The device has random access memory. | ✅ | ⛔️ |
| tinyencoding | The device has Tiny core specific instruction encodings. | ✅ | ⛔️ |
| xmega | The device is a part of the xmega family. | ✅ | ⛔️ |
| xmega3 | The device is a part of the xmega3 family. | ✅ | ⛔️ |
| xmegau | The device is a part of the xmegau family. | ✅ | ⛔️ |