ISD9130CFI datasheet(85/415 Pages) NUVOTON

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ISD9160 Technical Reference Manual

Release Date: Mar 30, 2016

- 85 -

Revision V1.41

Interrupt Control State Register (SYSCTL_ICSR)

Offset

R/W

Description

Reset Value

SYSCTL_ICSR

SYSINFO_BA+0xD04

R/W

Interrupt Control State Register

0x0000_0000

NMIPNSET

Reserved

PPSVISET

PPSVICLR

PSTKISET

PSTKICLR

Reserved

ISRPREEM

ISRPEND

Reserved

VTPEND[8:4]

VTPEND[3:0]

Reserved

VTACT[8]

VTACT[7:0]

Bits

Description

[31]

NMIPNSET

NMI Pending Set Control

Setting this bit will activate an NMI. Since NMI is the highest priority exception, it will activate as

soon as it is registered. Reads back with current state (1 if Pending, 0 if not).

[28]

PPSVISET

Set A Pending PendSV Interrupt

This is normally used to request a context switch. Reads back with current state (1 if Pending, 0

if not).

[27]

PPSVICLR

Clear A Pending PendSV Interrupt

Write 1 to clear a pending PendSV interrupt.

[26]

PSTKISET

Set A pending SysTick

Reads back with current state (1 if Pending, 0 if not).

[25]

PSTKICLR

Clear A pending SysTick

Write 1 to clear a pending SysTick.

[23]

ISRPREEM

ISR Preemptive

If set, a pending exception will be serviced on exit from the debug halt state.

[22]

ISRPEND

ISR Pending

Indicates if an external configurable (NVIC generated) interrupt is pending.

[20:12]

VTPEND

Vector Pending

Indicates the exception number for the highest priority pending exception. The pending state

includes the effect of memory-mapped enable and mask registers. It does not include the

PRIMASK special-purpose register qualifier. A value of zero indicates no pending exceptions.

[8:0]

VTACT

Vector Active

0: Thread mode

Value > 1: the exception number for the current executing exception.

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