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C8051F80X Datasheet(PDF) 4 Page - Silicon Laboratories |
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C8051F80X Datasheet(HTML) 4 Page - Silicon Laboratories |
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4 / 250 page  C8051F80x-83x 4 Rev. 1.0 15.2. Data Memory ................................................................................................... 93 15.2.1. Internal RAM ........................................................................................... 93 15.2.1.1. General Purpose Registers ............................................................ 94 15.2.1.2. Bit Addressable Locations .............................................................. 94 15.2.1.3. Stack ............................................................................................ 94 16. In-System Device Identification............................................................................ 95 17. Special Function Registers................................................................................... 97 18. Interrupts .............................................................................................................. 102 18.1. MCU Interrupt Sources and Vectors.............................................................. 103 18.1.1. Interrupt Priorities.................................................................................. 103 18.1.2. Interrupt Latency ................................................................................... 103 18.2. Interrupt Register Descriptions ...................................................................... 104 18.3. INT0 and INT1 External Interrupts................................................................. 111 19. Flash Memory....................................................................................................... 113 19.1. Programming The Flash Memory .................................................................. 113 19.1.1. Flash Lock and Key Functions .............................................................. 113 19.1.2. Flash Erase Procedure ......................................................................... 113 19.1.3. Flash Write Procedure .......................................................................... 114 19.2. Non-volatile Data Storage ............................................................................. 114 19.3. Security Options ............................................................................................ 114 19.4. Flash Write and Erase Guidelines ................................................................. 115 19.4.1. VDD Maintenance and the VDD Monitor .............................................. 116 19.4.2. PSWE Maintenance .............................................................................. 116 19.4.3. System Clock ........................................................................................ 117 20. Power Management Modes................................................................................. 120 20.1. Idle Mode....................................................................................................... 120 20.2. Stop Mode ..................................................................................................... 121 20.3. Suspend Mode .............................................................................................. 121 21. Reset Sources ...................................................................................................... 123 21.1. Power-On Reset ............................................................................................ 124 21.2. Power-Fail Reset / VDD Monitor ................................................................... 125 21.3. External Reset ............................................................................................... 126 21.4. Missing Clock Detector Reset ....................................................................... 126 21.5. Comparator0 Reset ....................................................................................... 127 21.6. PCA Watchdog Timer Reset ......................................................................... 127 21.7. Flash Error Reset .......................................................................................... 127 21.8. Software Reset .............................................................................................. 127 22. Oscillators and Clock Selection ......................................................................... 129 22.1. System Clock Selection................................................................................. 129 22.2. Programmable Internal High-Frequency (H-F) Oscillator .............................. 131 22.3. External Oscillator Drive Circuit..................................................................... 133 22.3.1. External Crystal Example...................................................................... 135 22.3.2. External RC Example............................................................................ 136 22.3.3. External Capacitor Example.................................................................. 137 23. Port Input/Output ................................................................................................. 138 |
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