C8051F52X Datasheet, PDF (5/220 Pages) Silicon Laboratories – 8/4/2 kB ISP Flash MCU Family

C8051F52x-53x
15.1.1.Internal Oscillator Suspend Mode .......................................................... 134
15.2.External Oscillator Drive Circuit...................................................................... 137
15.2.1.Clocking Timers Directly Through the External Oscillator...................... 137
15.2.2.External Crystal Example....................................................................... 137
15.2.3.External RC Example............................................................................. 139
15.2.4.External Capacitor Example................................................................... 139
15.3.System Clock Selection.................................................................................. 141
16. UART0.................................................................................................................... 143
16.1.Enhanced Baud Rate Generation................................................................... 144
16.2.Operational Modes ......................................................................................... 145
16.2.1.8-Bit UART ............................................................................................. 145
16.2.2.9-Bit UART ............................................................................................. 146
16.3.Multiprocessor Communications .................................................................... 146
17. LIN (C8051F520/523/526/530/533/536 only) ........................................................ 151
17.1.Major Characteristics...................................................................................... 151
17.2. Software Interface with the LIN Peripheral .................................................. 152
17.3.LIN Registers.................................................................................................. 153
17.3.1.LIN Direct Access SFR Registers Definition .......................................... 153
17.3.2.LIN Indirect Access SFR Registers Definition........................................ 154
17.4.LIN Interface Setup and Operation................................................................. 161
17.4.1.Mode Definition ...................................................................................... 161
17.4.2.Bit Rate Options: Manual or Autobaud (Slave only)............................... 162
17.4.3.Baud Rate Calculations - Manual Mode................................................. 162
17.4.4.Baud Rate Calculations - Automatic Mode ............................................ 164
17.4.5.LIN Master Mode Operation................................................................... 165
17.4.6.LIN Slave Mode Operation..................................................................... 166
17.4.7.Sleep Mode and Wake-Up ..................................................................... 167
17.4.8.Error Detection and Handling................................................................. 168
17.4.9.LIN Master Mode Operation................................................................... 168
17.4.10.LIN Slave Mode Operation................................................................... 168
18. Enhanced Serial Peripheral Interface (SPI0)...................................................... 171
18.1.Signal Descriptions......................................................................................... 172
18.1.1.Master Out, Slave In (MOSI).................................................................. 172
18.1.2.Master In, Slave Out (MISO).................................................................. 172
18.1.3.Serial Clock (SCK) ................................................................................. 172
18.1.4.Slave Select (NSS) ................................................................................ 172
18.2.SPI0 Master Mode Operation ......................................................................... 173
18.3.SPI0 Slave Mode Operation ........................................................................... 174
18.4.SPI0 Interrupt Sources ................................................................................... 175
18.5.Serial Clock Timing......................................................................................... 175
18.6.SPI Special Function Registers ...................................................................... 176
19. Timers.................................................................................................................... 185
19.1.Timer 0 and Timer 1 ....................................................................................... 185
Rev. 0.3
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