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MMC2107 - Freescale Semiconductor

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<strong>Freescale</strong> <strong>Semiconductor</strong>, Inc.<br />

Technical Data — <strong>MMC2107</strong><br />

Section 5. Reset Controller Module<br />

5.1 Contents<br />

nc...<br />

<strong>Freescale</strong> <strong>Semiconductor</strong>, I<br />

5.2 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .130<br />

5.3 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .130<br />

5.4 Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .131<br />

5.5 Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .131<br />

5.6 Memory Map and Registers . . . . . . . . . . . . . . . . . . . . . . . . . .132<br />

5.6.1 Reset Control Register . . . . . . . . . . . . . . . . . . . . . . . . . . . .133<br />

5.6.2 Reset Status Register . . . . . . . . . . . . . . . . . . . . . . . . . . . .134<br />

5.6.3 Reset Test Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .135<br />

5.7 Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .136<br />

5.7.1 Reset Sources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .136<br />

5.7.1.1 Power-On Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .137<br />

5.7.1.2 External Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .137<br />

5.7.1.3 Watchdog Timer Reset . . . . . . . . . . . . . . . . . . . . . . . . .137<br />

5.7.1.4 Loss of Clock Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . .137<br />

5.7.1.5 Loss of Lock Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . .138<br />

5.7.1.6 Software Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .138<br />

5.7.2 Reset Control Flow. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .138<br />

5.7.2.1 Synchronous Reset Requests . . . . . . . . . . . . . . . . . . . .138<br />

5.7.2.2 Internal Reset Request . . . . . . . . . . . . . . . . . . . . . . . . .140<br />

5.7.2.3 Power-On Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .140<br />

5.7.3 Concurrent Resets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .140<br />

5.7.3.1 Reset Flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .140<br />

5.7.3.2 Reset Status Flags. . . . . . . . . . . . . . . . . . . . . . . . . . . . .141<br />

5.8 Interrupts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .141<br />

<strong>MMC2107</strong> – Rev. 2.0 Technical Data<br />

MOTOROLA Reset Controller Module 129<br />

For More Information On This Product,<br />

Go to: www.freescale.com

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