Si1000/1/2/3/4/5
16.6. Selecting the Optimum Switch Size............................................................... 169
16.7. DC-DC Converter Clocking Options.............................................................. 169
16.8. DC-DC Converter Behavior in Sleep Mode................................................... 169
16.9. DC-DC Converter Register Descriptions....................................................... 171
16.10. DC-DC Converter Specifications................................................................. 173
17. Voltage Regulator (VREG0)................................................................................. 174
17.1. Voltage Regulator Electrical Specifications................................................... 174
18. Reset Sources...................................................................................................... 175
18.1. Power-On (VBAT Supply Monitor) Reset ...................................................... 176
18.2. Power-Fail (VDD_MCU Supply Monitor) Reset............................................. 177
18.3. External Reset............................................................................................... 179
18.4. Missing Clock Detector Reset ....................................................................... 179
18.5. Comparator0 Reset ....................................................................................... 180
18.6. PCA Watchdog Timer Reset ......................................................................... 180
18.7. Flash Error Reset .......................................................................................... 180
18.8. SmaRTClock (Real Time Clock) Reset ......................................................... 180
18.9. Software Reset.............................................................................................. 180
19. Clocking Sources................................................................................................. 182
19.1. Programmable Precision Internal Oscillator .................................................. 183
19.2. Low Power Internal Oscillator........................................................................ 183
19.3. External Oscillator Drive Circuit..................................................................... 183
19.4. Special Function Registers for Selecting and Configuring the System Clock 187
20. SmaRTClock (Real Time Clock).......................................................................... 190
20.1. SmaRTClock Interface .................................................................................. 190
20.2. SmaRTClock Clocking Sources .................................................................... 197
20.3. SmaRTClock Timer and Alarm Function....................................................... 201
21. Port Input/Output ................................................................................................. 207
21.1. Port I/O Modes of Operation.......................................................................... 208
21.2. Assigning Port I/O Pins to Analog and Digital Functions............................... 209
21.3. Priority Crossbar Decoder ............................................................................. 211
21.4. Port Match ..................................................................................................... 216
21.5. Special Function Registers for Accessing and Configuring Port I/O ............. 219
®
22. EZRadioPRO Serial Interface (SPI1) ................................................................ 228
22.1. Signal Descriptions........................................................................................ 229
22.2. SPI Master Operation on the MCU Core Side.............................................. 229
22.3. SPI Slave Operation on the EZRadioPRO Peripheral Side........................... 229
22.4. EZRadioPRO Serial Interface Interrupt Sources........................................... 232
22.5. Serial Clock Phase and Polarity .................................................................... 232
22.6. SPI Special Function Registers..................................................................... 233
®
23. EZRadioPRO 240–960 MHz Transceiver.......................................................... 239
23.1. EZRadioPRO Operating Modes .................................................................... 240
23.2. Interrupts ...................................................................................................... 243
23.3. System Timing............................................................................................... 244
23.4. Modulation Options........................................................................................ 251
23.5. Internal Functional Blocks ............................................................................. 256
Rev. 1.0
5
SILICON [ SILICON ]
