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C8051F50X Datasheet(PDF) 4 Page - Silicon Laboratories |
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C8051F50X Datasheet(HTML) 4 Page - Silicon Laboratories |
4 / 312 page ![]() C8051F50x-F51x 4 Rev. 1.1 12.2.1.3. Stack ............................................................................................ 99 13. Special Function Registers................................................................................. 100 13.1. SFR Paging ................................................................................................... 100 13.2. Interrupts and SFR Paging ............................................................................ 100 13.3. SFR Page Stack Example ............................................................................. 101 14. Interrupts .............................................................................................................. 117 14.1. MCU Interrupt Sources and Vectors.............................................................. 117 14.1.1. Interrupt Priorities.................................................................................. 118 14.1.2. Interrupt Latency ................................................................................... 118 14.2. Interrupt Register Descriptions ...................................................................... 120 14.3. External Interrupts INT0 and INT1................................................................. 126 15. Flash Memory....................................................................................................... 129 15.1. Programming The Flash Memory .................................................................. 129 15.1.1. Flash Lock and Key Functions .............................................................. 129 15.1.2. Flash Erase Procedure ......................................................................... 129 15.1.3. Flash Write Procedure .......................................................................... 130 15.1.4. Flash Write Optimization ....................................................................... 130 15.2. Non-volatile Data Storage ............................................................................. 131 15.3. Security Options ............................................................................................ 131 15.4. Flash Write and Erase Guidelines ................................................................. 133 15.4.1. VDD Maintenance and the VDD monitor ................................................ 133 15.4.2. PSWE Maintenance .............................................................................. 133 15.4.3. System Clock ........................................................................................ 134 16. Power Management Modes................................................................................. 138 16.1. Idle Mode....................................................................................................... 138 16.2. Stop Mode ..................................................................................................... 139 16.3. Suspend Mode .............................................................................................. 139 17. Reset Sources ...................................................................................................... 141 17.1. Power-On Reset ............................................................................................ 142 17.2. Power-Fail Reset/VDD Monitor ..................................................................... 142 17.3. External Reset ............................................................................................... 144 17.4. Missing Clock Detector Reset ....................................................................... 144 17.5. Comparator0 Reset ....................................................................................... 145 17.6. PCA Watchdog Timer Reset ......................................................................... 145 17.7. Flash Error Reset .......................................................................................... 145 17.8. Software Reset .............................................................................................. 145 18. External Data Memory Interface and On-Chip XRAM ....................................... 147 18.1. Accessing XRAM........................................................................................... 147 18.1.1. 16-Bit MOVX Example .......................................................................... 147 18.1.2. 8-Bit MOVX Example ............................................................................ 147 18.2. Configuring the External Memory Interface ................................................... 148 18.3. Port Configuration.......................................................................................... 148 18.4. Multiplexed and Non-multiplexed Selection................................................... 153 18.4.1. Multiplexed Configuration...................................................................... 153 18.4.2. Non-multiplexed Configuration.............................................................. 154 |
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