C8051F321-GMR Datasheet, PDF (6/250 Pages) Silicon Laboratories – Full Speed USB, 16 k ISP FLASH MCU Family

C8051F320/1
16.5.3.Slave Receiver Mode ............................................................................. 182
16.5.4.Slave Transmitter Mode ......................................................................... 183
16.6.SMBus Status Decoding................................................................................. 184
17. UART0.................................................................................................................... 187
17.1.Enhanced Baud Rate Generation................................................................... 188
17.2.Operational Modes ......................................................................................... 188
17.2.1.8-Bit UART ............................................................................................. 189
17.2.2.9-Bit UART ............................................................................................. 190
17.3.Multiprocessor Communications .................................................................... 190
18. Enhanced Serial Peripheral Interface (SPI0)...................................................... 195
18.1.Signal Descriptions......................................................................................... 196
18.1.1.Master Out, Slave In (MOSI).................................................................. 196
18.1.2.Master In, Slave Out (MISO).................................................................. 196
18.1.3.Serial Clock (SCK) ................................................................................. 196
18.1.4.Slave Select (NSS) ................................................................................ 196
18.2.SPI0 Master Mode Operation ......................................................................... 197
18.3.SPI0 Slave Mode Operation ........................................................................... 198
18.4.SPI0 Interrupt Sources ................................................................................... 199
18.5.Serial Clock Timing......................................................................................... 199
18.6.SPI Special Function Registers ...................................................................... 202
19. Timers ................................................................................................................... 209
19.1.Timer 0 and Timer 1 ....................................................................................... 209
19.1.1.Mode 0: 13-bit Counter/Timer ................................................................ 209
19.1.2.Mode 1: 16-bit Counter/Timer ................................................................ 211
19.1.3.Mode 2: 8-bit Counter/Timer with Auto-Reload...................................... 211
19.1.4.Mode 3: Two 8-bit Counter/Timers (Timer 0 Only)................................. 212
19.2.Timer 2 .......................................................................................................... 217
19.2.1.16-bit Timer with Auto-Reload................................................................ 217
19.2.2.8-bit Timers with Auto-Reload................................................................ 218
19.2.3.USB Start-of-Frame Capture.................................................................. 219
19.3.Timer 3 .......................................................................................................... 222
19.3.1.16-bit Timer with Auto-Reload................................................................ 222
19.3.2.8-bit Timers with Auto-Reload................................................................ 223
19.3.3.USB Start-of-Frame Capture.................................................................. 224
20. Programmable Counter Array (PCA0) ................................................................ 227
20.1.PCA Counter/Timer ........................................................................................ 228
20.2.Capture/Compare Modules ............................................................................ 229
20.2.1.Edge-triggered Capture Mode................................................................ 230
20.2.2.Software Timer (Compare) Mode........................................................... 232
20.2.3.High Speed Output Mode....................................................................... 233
20.2.4.Frequency Output Mode ........................................................................ 234
20.2.5.8-Bit Pulse Width Modulator Mode......................................................... 235
20.2.6.16-Bit Pulse Width Modulator Mode....................................................... 236
20.3.Watchdog Timer Mode ................................................................................... 236
20.3.1.Watchdog Timer Operation .................................................................... 237
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Rev. 1.4