C8051F120 Datasheet, PDF (4/356 Pages) Silicon Laboratories – Mixed Signal ISP Flash MCU Family

C8051F120/1/2/3/4/5/6/7
C8051F130/1/2/3
8.1. DAC Output Scheduling.................................................................................. 107
8.1.1. Update Output On-Demand ................................................................... 107
8.1.2. Update Output Based on Timer Overflow .............................................. 108
8.2. DAC Output Scaling/Justification .................................................................... 108
9. Voltage Reference ................................................................................................ 115
9.1. Reference Configuration on the C8051F120/2/4/6 ......................................... 115
9.2. Reference Configuration on the C8051F121/3/5/7 ......................................... 117
9.3. Reference Configuration on the C8051F130/1/2/3 ......................................... 119
10. Comparators ......................................................................................................... 121
11. CIP-51 Microcontroller ......................................................................................... 129
11.1.Instruction Set................................................................................................. 131
11.1.1.Instruction and CPU Timing ................................................................... 131
11.1.2.MOVX Instruction and Program Memory ............................................... 131
11.2.Memory Organization ..................................................................................... 136
11.2.1.Program Memory ................................................................................... 136
11.2.2.Data Memory.......................................................................................... 138
11.2.3.General Purpose Registers.................................................................... 138
11.2.4.Bit Addressable Locations...................................................................... 138
11.2.5.Stack ..................................................................................................... 138
11.2.6.Special Function Registers .................................................................... 139
11.2.6.1.SFR Paging ................................................................................... 139
11.2.6.2.Interrupts and SFR Paging ............................................................ 139
11.2.6.3.SFR Page Stack Example ............................................................. 141
11.2.7.Register Descriptions ............................................................................. 155
11.3.Interrupt Handler............................................................................................. 158
11.3.1.MCU Interrupt Sources and Vectors ...................................................... 158
11.3.2.External Interrupts.................................................................................. 158
11.3.3.Interrupt Priorities................................................................................... 160
11.3.4.Interrupt Latency .................................................................................... 160
11.3.5.Interrupt Register Descriptions............................................................... 161
11.4.Power Management Modes............................................................................ 167
11.4.1.Idle Mode ............................................................................................... 167
11.4.2.Stop Mode.............................................................................................. 168
12. Multiply And Accumulate (MAC0) ....................................................................... 169
12.1.Special Function Registers............................................................................. 169
12.2.Integer and Fractional Math............................................................................ 170
12.3.Operating in Multiply and Accumulate Mode .................................................. 171
12.4.Operating in Multiply Only Mode .................................................................... 171
12.5.Accumulator Shift Operations......................................................................... 171
12.6.Rounding and Saturation................................................................................ 172
12.7.Usage Examples ............................................................................................ 172
13. Reset Sources....................................................................................................... 181
13.1.Power-on Reset.............................................................................................. 182
13.2.Power-fail Reset ............................................................................................. 182
13.3.External Reset ................................................................................................ 183
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Rev. 1.3