C8051F980-C-GM Datasheet, PDF (3/325 Pages) Silicon Laboratories – Ultra Low Power, 8-2 kB Flash, Capacitive Sensing MCU

C8051F99x-C8051F98x
6.2. IREF0 Specifications......................................................................................... 92
7. Comparator ............................................................................................................. 93
7.1. Comparator Inputs ............................................................................................ 93
7.2. Comparator Outputs ......................................................................................... 94
7.3. Comparator Response Time............................................................................. 94
7.4. Comparator Hysteresis ..................................................................................... 94
7.5. Comparator Register Descriptions.................................................................... 95
7.6. Comparator0 Analog Multiplexer ...................................................................... 98
8. Capacitive Sense (CS0)........................................................................................ 100
8.1. Configuring Port Pins as Capacitive Sense Inputs ......................................... 101
8.2. Initializing the Capacitive Sensing Peripheral ................................................. 101
8.3. Capacitive Sense Start-Of-Conversion Sources............................................. 101
8.4. CS0 Multiple Channel Enable ......................................................................... 102
8.5. CS0 Gain Adjustment ..................................................................................... 102
8.6. Wake from Suspend ....................................................................................... 102
8.7. Using CS0 in Applications that Utilize Sleep Mode......................................... 102
8.8. Automatic Scanning (Method 1—CS0SMEN = 0) .......................................... 103
8.9. Automatic Scanning (Method 2—CS0SMEN = 1) .......................................... 104
8.10.CS0 Comparator............................................................................................. 104
8.11.CS0 Conversion Accumulator ........................................................................ 105
8.12.CS0 Pin Monitor ............................................................................................. 106
8.13.Adjusting CS0 For Special Situations............................................................. 106
8.14.Capacitive Sense Multiplexer ......................................................................... 117
9. CIP-51 Microcontroller ......................................................................................... 119
9.1. Performance ................................................................................................... 119
9.2. Programming and Debugging Support ........................................................... 120
9.3. Instruction Set ................................................................................................. 120
9.3.1. Instruction and CPU Timing ................................................................... 120
9.4. CIP-51 Register Descriptions.......................................................................... 125
10. Memory Organization........................................................................................... 128
10.1.Program Memory............................................................................................ 129
10.1.1.MOVX Instruction and Program Memory ............................................... 129
10.2.Data Memory .................................................................................................. 129
10.2.1.Internal RAM .......................................................................................... 129
10.2.2.External RAM ......................................................................................... 130
11. On-Chip XRAM...................................................................................................... 131
11.1.Accessing XRAM............................................................................................ 131
11.1.1.16-Bit MOVX Example ........................................................................... 131
11.1.2.8-Bit MOVX Example ............................................................................. 131
12. Special Function Registers ................................................................................. 132
12.1.SFR Paging .................................................................................................... 133
13. Interrupt Handler .................................................................................................. 138
13.1.Enabling Interrupt Sources ............................................................................. 138
13.2.MCU Interrupt Sources and Vectors............................................................... 138
13.3.Interrupt Priorities ........................................................................................... 139
Rev. 1.2
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