SI1012 datasheet(3/384 Pages) SILABS

3 / 384 page

Rev. 1.0

Si1010/1/2/3/4/5

5.14. Voltage Reference Electrical Specifications .................................................. 101

6. Programmable Current Reference (IREF0).......................................................... 102

6.1. PWM Enhanced Mode..................................................................................... 102

6.2. IREF0 Specifications ....................................................................................... 103

7. Comparators........................................................................................................... 104

7.1. Comparator Inputs........................................................................................... 104

7.2. Comparator Outputs ........................................................................................ 105

7.3. Comparator Response Time ........................................................................... 106

7.4. Comparator Hysteresis.................................................................................... 106

7.5. Comparator Register Descriptions .................................................................. 107

7.6. Comparator0 and Comparator1 Analog Multiplexers ...................................... 111

8. CIP-51 Microcontroller........................................................................................... 114

8.1. Performance .................................................................................................... 114

8.2. Programming and Debugging Support ............................................................ 115

8.3. Instruction Set.................................................................................................. 115

8.3.1. Instruction and CPU Timing .................................................................... 115

8.4. CIP-51 Register Descriptions .......................................................................... 119

9. Memory Organization ............................................................................................ 123

9.1. Program Memory............................................................................................. 123

9.1.1. MOVX Instruction and Program Memory ................................................ 124

9.2. Data Memory ................................................................................................... 124

9.2.1. Internal RAM ........................................................................................... 124

9.2.2. External RAM .......................................................................................... 125

10. On-Chip XRAM ..................................................................................................... 126

10.1. Accessing XRAM........................................................................................... 126

10.1.1. 16-Bit MOVX Example .......................................................................... 126

10.1.2. 8-Bit MOVX Example ............................................................................ 126

10.2. Special Function Registers............................................................................ 126

11. Special Function Registers................................................................................. 128

11.1. SFR Paging ................................................................................................... 129

12. Interrupt Handler.................................................................................................. 134

12.1. Enabling Interrupt Sources ............................................................................ 134

12.2. MCU Interrupt Sources and Vectors.............................................................. 134

12.3. Interrupt Priorities .......................................................................................... 135

12.4. Interrupt Latency............................................................................................ 135

12.5. Interrupt Register Descriptions ...................................................................... 137

12.6. External Interrupts INT0 and INT1................................................................. 144

13. Flash Memory....................................................................................................... 146

13.1. Programming the Flash Memory ................................................................... 146

13.1.1. Flash Lock and Key Functions .............................................................. 146

13.1.2. Flash Erase Procedure ......................................................................... 147

13.1.3. Flash Write Procedure .......................................................................... 147

13.2. Non-Volatile Data Storage............................................................................. 147

13.3. Security Options ............................................................................................ 148

13.4. Determining the Device Part Number at Run Time ....................................... 150

SI1012 Datasheet(PDF) 3 Page - Silicon Laboratories

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