The Clock Monitor Unit (CMU): Initializing the CMU on MPC56xx & MPC57xx Devices
●A part's clocks are critical to its safe operation. They need to be accurate and correctly programmed and if there is any variation in their frequency then the application should be notified. Because of this, most NXP safety critical parts contain several Clock Monitor Units (CMU).
●The main CMU of each device serves three purposes:
■Measures the frequency of the internal oscillator (IRCOSC)
■Monitors the external oscillator (XOSC) clock
■Monitors a selected clock
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Application note & Design Guide |
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Please see the document for details |
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English Chinese Chinese and English Japanese |
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November, 2017 |
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Rev. 0 |
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AN12080 |
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191 KB |
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