C8051F855-C-GM datasheet(6/328 Pages) SILABS

Part #	C8051F855-C-GM

Description	Low-Cost 8-bit MCU Family with up to 8 kB of Flash

Download	328 Pages

Scroll/Zoom	100%

Manufacturer	SILABS [Silicon Laboratories]

Direct Link	http://www.silabs.com

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6 / 328 page

5

Rev. 1.0

20.4.1.Edge Aligned PWM152

20.4.2.Center Aligned PWM154

20.4.3. 8 to11-bit Pulse Width Modulator Modes156

20.4.4. 16-Bit Pulse Width Modulator Mode157

20.5.Comparator Clear Function158

20.6.PCA Control Registers159

21. Port I/O (Port 0, Port 1, Port 2, Crossbar, and Port Match)176

21.1.General Port I/O Initialization177

21.2.Assigning Port I/O Pins to Analog and Digital Functions178

21.2.1.Assigning Port I/O Pins to Analog Functions178

21.2.2.Assigning Port I/O Pins to Digital Functions178

21.2.3.Assigning Port I/O Pins to Fixed Digital Functions179

21.3.Priority Crossbar Decoder180

21.4.Port I/O Modes of Operation182

21.4.1.Configuring Port Pins For Analog Modes182

21.4.2.Configuring Port Pins For Digital Modes182

21.4.3.Port Drive Strength182

21.5.Port Match183

21.6.Direct Read/Write Access to Port I/O Pins183

21.7.Port I/O and Pin Configuration Control Registers184

22. Reset Sources and Supply Monitor202

22.1.Power-On Reset203

22.2.Power-Fail Reset / Supply Monitor204

22.3.Enabling the VDD Monitor204

22.4.External Reset205

22.5.Missing Clock Detector Reset205

22.6.Comparator0 Reset205

22.7.Watchdog Timer Reset205

22.8.Flash Error Reset205

22.9.Software Reset205

22.10.Reset Sources Control Registers206

22.11.Supply Monitor Control Registers207

23. Serial Peripheral Interface (SPI0)208

23.1.Signal Descriptions209

23.1.1.Master Out, Slave In (MOSI)209

23.1.2.Master In, Slave Out (MISO)209

23.1.3.Serial Clock (SCK)209

23.1.4.Slave Select (NSS)209

23.2.SPI0 Master Mode Operation210

23.3.SPI0 Slave Mode Operation212

23.4.SPI0 Interrupt Sources212

23.5.Serial Clock Phase and Polarity212

23.6.SPI Special Function Registers214

23.7.SPI Control Registers218

24. System Management Bus / I2C (SMBus0)222

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C8051F855-C-GM Datasheet(PDF) 6 Page - Silicon Laboratories

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