C8051F399 Просмотр технического описания (PDF) - Silicon Laboratories

Номер в каталоге

Компоненты Описание

производитель

C8051F399

50 MIPS 16 kB Flash, 512B EEPROM Mixed-Signal MCU

Silicon Laboratories 

C8051F39x/37x

23.4. Accessing the CRC0 Result .......................................................................... 147

23.5. CRC0 Bit Reverse Feature............................................................................ 147

24. Reset Sources ...................................................................................................... 153

24.1. Power-On Reset ............................................................................................ 154

24.2. Power-Fail Reset / VDD Monitor ................................................................... 155

24.3. External Reset ............................................................................................... 157

24.4. Missing Clock Detector Reset ....................................................................... 157

24.5. Comparator0 Reset ....................................................................................... 157

24.6. PCA Watchdog Timer Reset ......................................................................... 157

24.7. Flash Error Reset .......................................................................................... 157

24.8. Software Reset .............................................................................................. 157

25. Power Management Modes................................................................................. 159

25.1. Idle Mode....................................................................................................... 159

25.2. Stop Mode ..................................................................................................... 160

25.3. Suspend Mode .............................................................................................. 160

26. Oscillators and Clock Selection ......................................................................... 162

26.1. System Clock Selection................................................................................. 163

26.2. Programmable Internal High-Frequency (H-F) Oscillator .............................. 164

26.2.1. Internal Oscillator Suspend Mode ......................................................... 164

26.3. Programmable Internal Low-Frequency (L-F) Oscillator ............................... 166

26.3.1. Calibrating the Internal L-F Oscillator.................................................... 166

26.4. Internal Low-Power Oscillator........................................................................ 167

26.5. External Oscillator Drive Circuit..................................................................... 167

26.5.1. External Crystal Mode........................................................................... 167

26.5.2. External RC Example............................................................................ 169

26.5.3. External Capacitor Example.................................................................. 169

27. Port Input/Output ................................................................................................. 171

27.1. Port I/O Modes of Operation.......................................................................... 172

27.1.1. Port Pins Configured for Analog I/O...................................................... 172

27.1.2. Port Pins Configured For Digital I/O...................................................... 172

27.2. Assigning Port I/O Pins to Analog and Digital Functions............................... 173

27.2.1. Assigning Port I/O Pins to Analog Functions ........................................ 173

27.2.2. Assigning Port I/O Pins to Digital Functions.......................................... 174

27.2.3. Assigning Port I/O Pins to External Event Trigger Functions................ 175

27.3. Priority Crossbar Decoder ............................................................................. 176

27.4. Port I/O Initialization ...................................................................................... 178

27.5. Port Match ..................................................................................................... 181

27.6. Special Function Registers for Accessing and Configuring Port I/O ............. 183

28. SMBus0 and SMBus1 (I2C Compatible)............................................................. 190

28.1. Supporting Documents .................................................................................. 191

28.2. SMBus Configuration..................................................................................... 191

28.3. SMBus Operation .......................................................................................... 191

28.3.1. Transmitter vs. Receiver ....................................................................... 192

28.3.2. Arbitration.............................................................................................. 192

28.3.3. Clock Low Extension............................................................................. 192

Preliminary Rev. 0.71

5

Share Link: