PENDSVCLR=VALUE_0, PENDSTSET=VALUE_0, PENDSVSET=VALUE_0, PENDSTCLR=VALUE_0, PENDNMISET=VALUE_0
Interrupt Control and State Register
| VECTACTIVE | Vector active |
| RETTOBASE | Return to base |
| VECTPENDING | Vector pending |
| ISRPENDING | Interrupt pending |
| ISRPREEMPT | Interrupt preempt |
| PENDSTCLR | Pend SysTick clear 0 (VALUE_0): No effect 1 (VALUE_1): Removes the pending state from the SysTick exception |
| PENDSTSET | Pend SysTick set 0 (VALUE_0): Write: no effect; read: SysTick exception is not pending 1 (VALUE_1): Write: changes SysTick exception state to pending; read: SysTick exception is pending |
| PENDSVCLR | Pend PendSV clear 0 (VALUE_0): No effect 1 (VALUE_1): Removes the pending state from the PendSV exception |
| PENDSVSET | Pend PendSV set 0 (VALUE_0): Write: no effect; read: PendSV exception is not pending 1 (VALUE_1): Write: changes PendSV exception state to pending; read: PendSV exception is pending |
| PENDNMICLR | Pend NMI clear |
| PENDNMISET | Pend NMI set 0 (VALUE_0): Write: no effect; read: NMI exception is not pending 1 (VALUE_1): Write: changes NMI exception state to pending; read: NMI exception is pending |