External Interrupt Level Register 1
| LA16 | Bit0 of ELVR1 |
| LB16 | Bit1 of ELVR1 |
| LA17 | Bit2 of ELVR1 |
| LB17 | Bit3 of ELVR1 |
| LA18 | Bit4 of ELVR1 |
| LB18 | Bit5 of ELVR1 |
| LA19 | Bit6 of ELVR1 |
| LB19 | Bit7 of ELVR1 |
| LA20 | Bit8 of ELVR1 |
| LB20 | Bit9 of ELVR1 |
| LA21 | Bit10 of ELVR1 |
| LB21 | Bit11 of ELVR1 |
| LA22 | Bit12 of ELVR1 |
| LB22 | Bit13 of ELVR1 |
| LA23 | Bit14 of ELVR1 |
| LB23 | Bit15 of ELVR1 |
| LA24 | Bit16 of ELVR1 |
| LB24 | Bit17 of ELVR1 |
| LA25 | Bit18 of ELVR1 |
| LB25 | Bit19 of ELVR1 |
| LA26 | Bit20 of ELVR1 |
| LB26 | Bit21 of ELVR1 |
| LA27 | Bit22 of ELVR1 |
| LB27 | Bit23 of ELVR1 |
| LA28 | Bit24 of ELVR1 |
| LB28 | Bit25 of ELVR1 |
| LA29 | Bit26 of ELVR1 |
| LB29 | Bit27 of ELVR1 |
| LA30 | Bit28 of ELVR1 |
| LB30 | Bit29 of ELVR1 |
| LA31 | Bit30 of ELVR1 |
| LB31 | Bit31 of ELVR1 |