C8051F850-B-GM Datasheet, PDF (4/290 Pages) Silicon Laboratories – Low-Cost 8-bit MCU Family with up to 8 kB of Flash

C8051F85x/86x
14.9.Temperature Sensor .................................................................................................... 90
14.9.1.Calibration ........................................................................................................... 90
14.10.ADC Control Registers............................................................................................... 91
15. CIP-51 Microcontroller Core ........................................................................................... 106
15.1.Performance .............................................................................................................. 106
15.2.Programming and Debugging Support ...................................................................... 107
15.3.Instruction Set ............................................................................................................ 107
15.3.1.Instruction and CPU Timing............................................................................... 107
15.4.CPU Core Registers .................................................................................................. 112
16. Clock Sources and Selection (HFOSC0, LFOSC0, and EXTCLK)................................ 118
16.1.Programmable High-Frequency Oscillator................................................................. 118
16.2.Programmable Low-Frequency Oscillator.................................................................. 118
16.2.1.Calibrating the Internal L-F Oscillator ................................................................ 118
16.3.External Clock............................................................................................................118
16.4.Clock Selection .......................................................................................................... 119
16.5.High Frequency Oscillator Control Registers............................................................. 120
16.6.Low Frequency Oscillator Control Registers.............................................................. 121
16.7.Clock Selection Control Registers ............................................................................. 122
17. Comparators (CMP0 and CMP1)..................................................................................... 123
17.1.System Connectivity .................................................................................................. 123
17.2.Functional Description ...............................................................................................126
17.3.Comparator Control Registers ................................................................................... 127
18. Cyclic Redundancy Check Unit (CRC0)......................................................................... 133
18.1.CRC Algorithm ........................................................................................................... 133
18.2.Preparing for a CRC Calculation................................................................................ 135
18.3.Performing a CRC Calculation................................................................................... 135
18.4.Accessing the CRC0 Result....................................................................................... 135
18.5.CRC0 Bit Reverse Feature ........................................................................................135
18.6.CRC Control Registers .............................................................................................. 136
19. External Interrupts (INT0 and INT1)................................................................................ 142
19.1.External Interrupt Control Registers........................................................................... 143
20. Programmable Counter Array (PCA0)............................................................................ 146
20.1.PCA Counter/Timer.................................................................................................... 147
20.2.PCA0 Interrupt Sources ............................................................................................. 147
20.3.Capture/Compare Modules........................................................................................148
20.3.1.Output Polarity................................................................................................... 148
20.3.2.Edge-triggered Capture Mode ........................................................................... 149
20.3.3.Software Timer (Compare) Mode ...................................................................... 150
20.3.4.High-Speed Output Mode.................................................................................. 151
20.3.5.Frequency Output Mode.................................................................................... 152
20.4.PWM Waveform Generation ...................................................................................... 153
20.4.1.Edge Aligned PWM ........................................................................................... 153
20.4.2.Center Aligned PWM ......................................................................................... 155
20.4.3. 8 to11-bit Pulse Width Modulator Modes.......................................................... 157
20.4.4. 16-Bit Pulse Width Modulator Mode ................................................................. 158
20.5.Comparator Clear Function........................................................................................159
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Preliminary Rev 0.6