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Moteur de recherche de fiches techniques de composants électroniques |
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Moteur de recherche de fiches techniques de composants électroniques |
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HC705RC16GRS/D Fiches technique(PDF) 49 Page - NXP Semiconductors |
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HC705RC16GRS/D Fiches technique(HTML) 49 Page - NXP Semiconductors |
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49 / 120 page  Resets Internal Resets MC68HC705RC16 — Rev. 3.0 General Release Specification Resets 5.5.2.5 COP Register The COP register is shared with the LSB of an unimplemented user interrupt vector as shown in Figure 5-3. Reading this location returns whatever user data has been programmed at this location. Writing a zero to the COPR bit in this location clears the COP watchdog timer. 5.5.3 Illegal Address An illegal address reset is generated when the CPU attempts to fetch an instruction from I/O address space ($0000 to $001F). Address: $0FF) BIt 7 654321 Bit 0 Read: X X X X X X X X Write: COPR Reset: ——————— 0 = Unimplemented Figure 5-3. COP Watchdog Timer Location Freescale Semiconductor, Inc. For More Information On This Product, Go to: www.freescale.com |
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