SYSCFG interrupt line 7 status register
| EXTI4 | EXTI line 4 interrupt request pending |
| EXTI5 | EXTI line 5 interrupt request pending |
| EXTI6 | EXTI line 6 interrupt request pending |
| EXTI7 | EXTI line 7 interrupt request pending |
| EXTI8 | EXTI line 8 interrupt request pending |
| EXTI9 | EXTI line 9 interrupt request pending |
| EXTI10 | EXTI line 10 interrupt request pending |
| EXTI11 | EXTI line 11 interrupt request pending |
| EXTI12 | EXTI line 12 interrupt request pending |
| EXTI13 | EXTI line 13 interrupt request pending |
| EXTI14 | EXTI line 14 interrupt request pending |
| EXTI15 | EXTI line 15 interrupt request pending |