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C8051F55X Datasheet(PDF) 4 Page - Silicon Laboratories |
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C8051F55X Datasheet(HTML) 4 Page - Silicon Laboratories |
4 / 302 page C8051F55x/56x/57x 4 Rev. 1.1 12.2. Interrupts and SFR Paging .............................................................................. 95 12.3. SFR Page Stack Example ............................................................................... 97 13. Interrupts .............................................................................................................. 112 13.1. MCU Interrupt Sources and Vectors.............................................................. 112 13.1.1. Interrupt Priorities.................................................................................. 113 13.1.2. Interrupt Latency ................................................................................... 113 13.2. Interrupt Register Descriptions ...................................................................... 115 13.3. External Interrupts INT0 and INT1................................................................. 122 14. Flash Memory....................................................................................................... 124 14.1. Programming The Flash Memory .................................................................. 124 14.1.1. Flash Lock and Key Functions .............................................................. 124 14.1.2. Flash Erase Procedure ......................................................................... 124 14.1.3. Flash Write Procedure .......................................................................... 125 14.1.4. Flash Write Optimization ....................................................................... 125 14.2. Non-volatile Data Storage ............................................................................. 126 14.3. Security Options ............................................................................................ 126 14.4. Flash Write and Erase Guidelines ................................................................. 128 14.4.1. VDD Maintenance and the VDD monitor ................................................ 128 14.4.2. PSWE Maintenance .............................................................................. 128 14.4.3. System Clock ........................................................................................ 129 15. Power Management Modes................................................................................. 133 15.1. Idle Mode....................................................................................................... 133 15.2. Stop Mode ..................................................................................................... 134 15.3. Suspend Mode .............................................................................................. 134 16. Reset Sources ...................................................................................................... 136 16.1. Power-On Reset ............................................................................................ 137 16.2. Power-Fail Reset/VDD Monitor ..................................................................... 137 16.3. External Reset ............................................................................................... 139 16.4. Missing Clock Detector Reset ....................................................................... 139 16.5. Comparator0 Reset ....................................................................................... 140 16.6. PCA Watchdog Timer Reset ......................................................................... 140 16.7. Flash Error Reset .......................................................................................... 140 16.8. Software Reset .............................................................................................. 140 17. External Data Memory Interface and On-Chip XRAM ....................................... 142 17.1. Accessing XRAM........................................................................................... 142 17.1.1. 16-Bit MOVX Example .......................................................................... 142 17.1.2. 8-Bit MOVX Example ............................................................................ 142 17.2. Configuring the External Memory Interface ................................................... 143 17.3. Port Configuration.......................................................................................... 143 17.4. Multiplexed Mode .......................................................................................... 147 17.5. Memory Mode Selection................................................................................ 148 17.5.1. Internal XRAM Only .............................................................................. 148 17.5.2. Split Mode without Bank Select............................................................. 148 17.5.3. Split Mode with Bank Select.................................................................. 149 17.5.4. External Only......................................................................................... 149 |
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