C8051F54X_14 Datasheet, PDF (4/275 Pages) Silicon Laboratories – Mixed Signal ISP Flash MCU Family

C8051F54x
15. Power Management Modes................................................................................. 126
15.1. Idle Mode....................................................................................................... 126
15.2. Stop Mode ..................................................................................................... 127
15.3. Suspend Mode .............................................................................................. 127
16. Reset Sources ...................................................................................................... 129
16.1. Power-On Reset ............................................................................................ 130
16.2. Power-Fail Reset/VDD Monitor ..................................................................... 130
16.3. External Reset ............................................................................................... 132
16.4. Missing Clock Detector Reset ....................................................................... 132
16.5. Comparator0 Reset ....................................................................................... 133
16.6. PCA Watchdog Timer Reset ......................................................................... 133
16.7. Flash Error Reset .......................................................................................... 133
16.8. Software Reset .............................................................................................. 133
17. Oscillators and Clock Selection ......................................................................... 135
17.1. System Clock Selection................................................................................. 135
17.2. Programmable Internal Oscillator .................................................................. 137
17.3. Clock Multiplier .............................................................................................. 140
17.4. External Oscillator Drive Circuit..................................................................... 142
18. Port Input/Output ................................................................................................. 147
18.1. Port I/O Modes of Operation.......................................................................... 148
18.2. Assigning Port I/O Pins to Analog and Digital Functions............................... 149
18.3. Priority Crossbar Decoder ............................................................................. 150
18.4. Port I/O Initialization ...................................................................................... 152
18.5. Port Match ..................................................................................................... 157
18.6. Special Function Registers for Accessing and Configuring Port I/O ............. 161
19. Local Interconnect Network (LIN)....................................................................... 170
19.1. Software Interface with the LIN Controller..................................................... 171
19.2. LIN Interface Setup and Operation................................................................ 171
19.3. LIN Master Mode Operation .......................................................................... 174
19.4. LIN Slave Mode Operation ............................................................................ 175
19.5. Sleep Mode and Wake-Up ............................................................................ 176
19.6. Error Detection and Handling ........................................................................ 176
19.7. LIN Registers................................................................................................. 177
20. SMBus................................................................................................................... 187
20.1. Supporting Documents .................................................................................. 188
20.2. SMBus Configuration..................................................................................... 188
20.3. SMBus Operation .......................................................................................... 188
20.4. Using the SMBus........................................................................................... 190
20.5. SMBus Transfer Modes................................................................................. 197
20.6. SMBus Status Decoding................................................................................ 201
21. UART0 ................................................................................................................... 205
21.1. Baud Rate Generator .................................................................................... 205
21.2. Data Format................................................................................................... 207
21.3. Configuration and Operation ......................................................................... 208
22. Enhanced Serial Peripheral Interface (SPI0) ..................................................... 214
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Rev. 1.1