C8051F314 データシートの表示（PDF） - Silicon Laboratories
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C8051F314 Datasheet PDF : 224 Pages
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C8051F310/1/2/3/4/5/6/7
8.3.4. Interrupt Latency ...................................................................................... 93
8.3.5. Interrupt Register Descriptions................................................................. 95
8.4. Power Management Modes ............................................................................ 100
8.4.1. Idle Mode................................................................................................ 100
8.4.2. Stop Mode .............................................................................................. 101
9. Reset Sources....................................................................................................... 103
9.1. Power-On Reset ............................................................................................. 104
9.2. Power-Fail Reset / VDD Monitor..................................................................... 104
9.3. External Reset ................................................................................................ 105
9.4. Missing Clock Detector Reset......................................................................... 106
9.5. Comparator0 Reset......................................................................................... 106
9.6. PCA Watchdog Timer Reset........................................................................... 106
9.7. Flash Error Reset............................................................................................ 106
9.8. Software Reset ............................................................................................... 106
10. Flash Memory ..................................................................................................... 109
10.1.Programming The Flash Memory ................................................................... 109
10.1.1.Flash Lock and Key Functions ............................................................... 109
10.1.2.Flash Erase Procedure .......................................................................... 109
10.1.3.Flash Write Procedure ........................................................................... 110
10.2.Non-volatile Data Storage .............................................................................. 110
10.3.Security Options ............................................................................................. 111
11. External RAM ........................................................................................................ 115
12. Oscillators ............................................................................................................. 117
12.1.Programmable Internal Oscillator ................................................................... 117
12.2.External Oscillator Drive Circuit...................................................................... 120
12.3.System Clock Selection.................................................................................. 120
12.4.External Crystal Example ............................................................................... 122
12.5.External RC Example ..................................................................................... 123
12.6.External Capacitor Example ........................................................................... 123
13. Port Input/Output ................................................................................................ 125
13.1.Priority Crossbar Decoder .............................................................................. 127
13.2.Port I/O Initialization ....................................................................................... 129
13.3.General Purpose Port I/O ............................................................................... 131
14. SMBus ................................................................................................................... 141
14.1.Supporting Documents ................................................................................... 142
14.2.SMBus Configuration...................................................................................... 142
14.3.SMBus Operation ........................................................................................... 142
14.3.1.Arbitration............................................................................................... 143
14.3.2.Clock Low Extension.............................................................................. 144
14.3.3.SCL Low Timeout................................................................................... 144
14.3.4.SCL High (SMBus Free) Timeout .......................................................... 144
14.4.Using the SMBus............................................................................................ 145
14.4.1.SMBus Configuration Register............................................................... 146
14.4.2.SMB0CN Control Register ..................................................................... 149
14.4.3.Data Register ......................................................................................... 152
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Rev. 1.6
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