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DescriptionQ582
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Q582FWGoogleASIC interview problem

Clear a write-one-to-clear interrupt

TechniquesFWMMIOW1CInterrupts
DifficultyMedium
TopicFirmware
LanguageC
Format4 choices
01

Problem

STATUS bits are write-one-to-clear. Bit 2 is pending, and other bits may become pending between the firmware read and write. Which write clears only bit 2 without clearing newly pending unrelated bits?

02

Answer choices (4)