C8051F380 Ver la hoja de datos (PDF) - Silicon Laboratories
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C8051F380 Datasheet PDF : 321 Pages
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C8051F380/1/2/3/4/5/6/7/C
14. External Data Memory Interface and On-Chip XRAM ......................................... 93
14.1. Accessing XRAM............................................................................................. 93
14.1.1. 16-Bit MOVX Example ............................................................................ 93
14.1.2. 8-Bit MOVX Example .............................................................................. 93
14.2. Accessing USB FIFO Space ........................................................................... 94
14.3. Configuring the External Memory Interface ..................................................... 95
14.4. Port Configuration............................................................................................ 95
14.5. Multiplexed and Non-multiplexed Selection..................................................... 98
14.5.1. Multiplexed Configuration........................................................................ 98
14.5.2. Non-multiplexed Configuration................................................................ 98
14.6. Memory Mode Selection................................................................................ 100
14.6.1. Internal XRAM Only .............................................................................. 100
14.6.2. Split Mode without Bank Select............................................................. 100
14.6.3. Split Mode with Bank Select.................................................................. 101
14.6.4. External Only......................................................................................... 101
14.7. Timing .......................................................................................................... 102
14.7.1. Non-multiplexed Mode .......................................................................... 104
14.7.1.1. 16-bit MOVX: EMI0CF[4:2] = 101, 110, or 111............................. 104
14.7.1.2. 8-bit MOVX without Bank Select: EMI0CF[4:2] = 101 or 111 ....... 105
14.7.1.3. 8-bit MOVX with Bank Select: EMI0CF[4:2] = 110 ....................... 106
14.7.2. Multiplexed Mode .................................................................................. 107
14.7.2.1. 16-bit MOVX: EMI0CF[4:2] = 001, 010, or 011............................. 107
14.7.2.2. 8-bit MOVX without Bank Select: EMI0CF[4:2] = 001 or 011 ....... 108
14.7.2.3. 8-bit MOVX with Bank Select: EMI0CF[4:2] = 010 ....................... 109
15. Special Function Registers................................................................................. 111
15.1. 13.1. SFR Paging .......................................................................................... 111
16. Interrupts .............................................................................................................. 118
16.1. MCU Interrupt Sources and Vectors.............................................................. 119
16.1.1. Interrupt Priorities.................................................................................. 119
16.1.2. Interrupt Latency ................................................................................... 119
16.2. Interrupt Register Descriptions ...................................................................... 119
16.3. INT0 and INT1 External Interrupt Sources .................................................... 127
17. Reset Sources ...................................................................................................... 129
17.1. Power-On Reset ............................................................................................ 130
17.2. Power-Fail Reset / VDD Monitor ................................................................... 131
17.3. External Reset ............................................................................................... 132
17.4. Missing Clock Detector Reset ....................................................................... 132
17.5. Comparator0 Reset ....................................................................................... 132
17.6. PCA Watchdog Timer Reset ......................................................................... 133
17.7. Flash Error Reset .......................................................................................... 133
17.8. Software Reset .............................................................................................. 133
17.9. USB Reset..................................................................................................... 133
18. Flash Memory....................................................................................................... 135
18.1. Programming The Flash Memory .................................................................. 135
18.1.1. Flash Lock and Key Functions .............................................................. 135
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Rev. 1.4
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