Nested Interrupts Using MSP430

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Interrupt nesting is activated if the GIE bit is set inside the interrupt handling routine. Normally, the GIE bit is reset in an interrupt service routine. Therefore, if you want an interrupt within an interrupt the GIE bit needs to be set within the interrupt handling routine. For MSP430x1xx family please refer to the `System Resets, Interrupts, and Operating Modes` chapter of the user`s guide.

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