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Is the ARM PRIMASK LSB used by the KL17 hardware?

Question asked by rick stuart on Apr 21, 2016

I was wondering, is the ARM PRIMASK least significant bit (controllable by using CPSID i or CPSIE i or __disable_irq() or __enable_irq()) ever used by the KL17's hardware?  Specifically, does the KL17 hardware use the PRIMASK LSB to control the inhibiting of interrupts?

 

If not, how does the KL17 inhibit interrupts - for example, when the KL17 is in an interrupt it disables that interrupt so as not to cause an infinite number of interrupt calls.

 

-thanks

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