C8051F854-B-GM datasheet(3/290 Pages) SILABS

Part #	C8051F854-B-GM

Description	Low-Cost 8-bit MCU Family with up to 8 kB of Flash

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Manufacturer	SILABS [Silicon Laboratories]

Direct Link	http://www.silabs.com

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C8051F85x/86x

Preliminary Rev 0.6

3

8.2.3. Special Function Registers..................................................................................48

9. Special Function Register Memory Map..........................................................................49

10.Flash Memory.....................................................................................................................54

10.1.Security Options...........................................................................................................54

10.2.Programming The Flash Memory ................................................................................56

10.2.1.Flash Lock and Key Functions ............................................................................56

10.2.2.Flash Erase Procedure........................................................................................56

10.2.3.Flash Write Procedure.........................................................................................56

10.3.Non-volatile Data Storage............................................................................................57

10.4.Flash Write and Erase Guidelines ...............................................................................57

10.4.1.Voltage Supply Maintenance and the Supply Monitor.........................................57

10.4.2.PSWE Maintenance ............................................................................................57

10.4.3.System Clock.......................................................................................................58

10.5.Flash Control Registers ...............................................................................................59

11.Device Identification..........................................................................................................62

11.1.Device Identification Registers.....................................................................................62

12.Interrupts ............................................................................................................................65

12.1.MCU Interrupt Sources and Vectors............................................................................65

12.1.1.Interrupt Priorities ................................................................................................65

12.1.2.Interrupt Latency..................................................................................................65

12.2.Interrupt Control Registers...........................................................................................67

13.Power Management and Internal Regulator....................................................................74

13.1.Power Modes...............................................................................................................74

13.1.1.Idle Mode.............................................................................................................74

13.1.2.Stop Mode ...........................................................................................................75

13.2.LDO Regulator.............................................................................................................75

13.3.Power Control Registers..............................................................................................75

13.4.LDO Control Registers.................................................................................................76

14.Analog-to-Digital Converter (ADC0).................................................................................78

14.1.ADC0 Analog Multiplexer.............................................................................................79

14.2.ADC Operation.............................................................................................................80

14.2.1.Starting a Conversion..........................................................................................80

14.2.2.Tracking Modes...................................................................................................80

14.2.3.Burst Mode ..........................................................................................................81

14.2.4.Settling Time Requirements ................................................................................82

14.2.5.Gain Setting.........................................................................................................83

14.3.8-Bit Mode....................................................................................................................83

14.4.12-Bit Mode..................................................................................................................83

14.5.Power Considerations..................................................................................................84

14.6.Output Code Formatting ..............................................................................................86

14.7.Programmable Window Detector.................................................................................87

14.7.1.Window Detector In Single-Ended Mode.............................................................87

14.8.Voltage and Ground Reference Options......................................................................89

14.8.1.External Voltage Reference.................................................................................89

14.8.2.Internal Voltage Reference..................................................................................89

14.8.3.Analog Ground Reference...................................................................................89

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C8051F854-B-GM Datasheet(PDF) 3 Page - Silicon Laboratories

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