Silicon Laboratories C8051F12 Series Manual page 4

C8051F120/1/2/3/4/5/6/7 C8051F130/1/2/3
8. DACs, 12-Bit Voltage Mode (C8051F12x Only) .................................................. 105
8.1. DAC Output Scheduling.................................................................................. 105
8.1.1. Update Output On-Demand ................................................................... 106
8.1.2. Update Output Based on Timer Overflow .............................................. 106
8.2. DAC Output Scaling/Justification .................................................................... 106
9. Voltage Reference ................................................................................................ 113
9.1. Reference Configuration on the C8051F120/2/4/6 ......................................... 113
9.2. Reference Configuration on the C8051F121/3/5/7 ......................................... 115
9.3. Reference Configuration on the C8051F130/1/2/3 ......................................... 117
10. Comparators ......................................................................................................... 119
11. CIP-51 Microcontroller ......................................................................................... 127
11.1.Instruction Set................................................................................................. 129
11.1.1.Instruction and CPU Timing ................................................................... 129
11.1.2.MOVX Instruction and Program Memory ............................................... 129
11.2.Memory Organization ..................................................................................... 133
11.2.1.Program Memory ................................................................................... 133
11.2.2.Data Memory.......................................................................................... 135
11.2.3.General Purpose Registers.................................................................... 135
11.2.4.Bit Addressable Locations...................................................................... 135
11.2.5.Stack ..................................................................................................... 135
11.2.6.Special Function Registers .................................................................... 136
11.2.7.Register Descriptions ............................................................................. 151
11.3.Interrupt Handler............................................................................................. 154
11.3.1.MCU Interrupt Sources and Vectors ...................................................... 154
11.3.2.External Interrupts.................................................................................. 155
11.3.3.Interrupt Priorities................................................................................... 156
11.3.4.Interrupt Latency .................................................................................... 156
11.3.5.Interrupt Register Descriptions............................................................... 157
11.4.Power Management Modes............................................................................ 163
11.4.1.Idle Mode ............................................................................................... 163
11.4.2.Stop Mode.............................................................................................. 164
12. Multiply And Accumulate (MAC0) ....................................................................... 165
12.1.Special Function Registers............................................................................. 165
12.2.Integer and Fractional Math............................................................................ 166
12.3.Operating in Multiply and Accumulate Mode .................................................. 167
12.4.Operating in Multiply Only Mode .................................................................... 167
12.5.Accumulator Shift Operations......................................................................... 167
12.6.Rounding and Saturation................................................................................ 168
12.7.Usage Examples ............................................................................................ 168
12.7.1.Multiply and Accumulate Example ......................................................... 168
12.7.2.Multiply Only Example............................................................................ 169
12.7.3.MAC0 Accumulator Shift Example ......................................................... 169
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