External Interrupt Level Register
| LA0 | Bit0 of ELVR |
| LB0 | Bit1 of ELVR |
| LA1 | Bit2 of ELVR |
| LB1 | Bit3 of ELVR |
| LA2 | Bit4 of ELVR |
| LB2 | Bit5 of ELVR |
| LA3 | Bit6 of ELVR |
| LB3 | Bit7 of ELVR |
| LA4 | Bit8 of ELVR |
| LB4 | Bit9 of ELVR |
| LA5 | Bit10 of ELVR |
| LB5 | Bit11 of ELVR |
| LA6 | Bit12 of ELVR |
| LB6 | Bit13 of ELVR |
| LA7 | Bit14 of ELVR |
| LB7 | Bit15 of ELVR |
| LA8 | Bit16 of ELVR |
| LB8 | Bit17 of ELVR |
| LA9 | Bit18 of ELVR |
| LB9 | Bit19 of ELVR |
| LA10 | Bit20 of ELVR |
| LB10 | Bit21 of ELVR |
| LA11 | Bit22 of ELVR |
| LB11 | Bit23 of ELVR |
| LA12 | Bit24 of ELVR |
| LB12 | Bit25 of ELVR |
| LA13 | Bit26 of ELVR |
| LB13 | Bit27 of ELVR |
| LA14 | Bit28 of ELVR |
| LB14 | Bit29 of ELVR |
| LA15 | Bit30 of ELVR |
| LB15 | Bit31 of ELVR |