c8051f410 Silicon Laboratories, c8051f410 Datasheet - Page 5

• Manufacturer Part Number: c8051f410
• Description: 2.0 V, 32/16 Kb Flash, Smartclock, 12-bit Adc
• Manufacturer: Silicon Laboratories

17. External RAM ........................................................................................................ 145
18. Port Input/Output.................................................................................................. 147
19. Oscillators ............................................................................................................. 165
20. smaRTClock (Real Time Clock)........................................................................... 177
21. SMBus ................................................................................................................... 191
16.3.Security Options ............................................................................................. 137
16.4.Flash Write and Erase Guidelines .................................................................. 139
16.5.Flash Read Timing ......................................................................................... 142
18.1.Priority Crossbar Decoder .............................................................................. 149
18.2.Port I/O Initialization ....................................................................................... 151
18.3.General Purpose Port I/O ............................................................................... 154
19.1.Programmable Internal Oscillator ................................................................... 165
19.2.External Oscillator Drive Circuit...................................................................... 168
19.3.Clock Multiplier ............................................................................................... 172
19.4.System Clock Selection.................................................................................. 174
20.1.smaRTClock Interface .................................................................................... 178
20.2.smaRTClock Clocking Sources ...................................................................... 182
20.3.smaRTClock Timer and Alarm Function......................................................... 185
20.4.Backup Regulator and RAM ........................................................................... 187
21.1.Supporting Documents ................................................................................... 192
21.2.SMBus Configuration...................................................................................... 192
21.3.SMBus Operation ........................................................................................... 192
16.4.1.VDD Maintenance and the VDD Monitor ............................................... 139
16.4.2.16.4.2 PSWE Maintenance .................................................................... 140
16.4.3.System Clock ......................................................................................... 140
19.1.1.Internal Oscillator Suspend Mode .......................................................... 166
19.2.1.Clocking Timers Directly Through the External Oscillator...................... 168
19.2.2.External Crystal Example....................................................................... 168
19.2.3.External RC Example............................................................................. 170
19.2.4.External Capacitor Example................................................................... 170
20.1.1.smaRTClock Lock and Key Functions ................................................... 178
20.1.2.Using RTC0ADR and RTC0DAT to Access
20.1.3.smaRTClock Interface Autoread Feature............................................... 178
20.1.4.RTC0ADR Autoincrement Feature......................................................... 179
20.2.1.Using the smaRTClock Oscillator in Crystal Mode ................................ 182
20.2.2.Using the smaRTClock Oscillator in Self-Oscillate Mode ...................... 182
20.2.3.Automatic Gain Control (Crystal Mode Only) ......................................... 183
20.2.4.smaRTClock Bias Doubling ................................................................... 183
20.2.5.smaRTClock Missing Clock Detector..................................................... 183
20.3.1.Setting and Reading the smaRTClock Timer Value............................... 185
20.3.2.Setting a smaRTClock Alarm ................................................................. 186
21.3.1.Arbitration............................................................................................... 193
21.3.2.Clock Low Extension.............................................................................. 193
21.3.3.SCL Low Timeout................................................................................... 194
smaRTClock Internal Registers.............................................................. 178
Rev. 1.0
C8051F410/1/2/3
5