C8051F50x-F51x
21.5. Sleep Mode and Wake-Up ............................................................................ 207
21.6. Error Detection and Handling ........................................................................ 207
21.7. LIN Registers................................................................................................. 208
21.7.1. LIN Direct Access SFR Registers Definitions ....................................... 208
21.7.2. LIN Indirect Access SFR Registers Definitions..................................... 210
22. Controller Area Network (CAN0) ........................................................................ 218
22.1. Bosch CAN Controller Operation................................................................... 219
22.1.1. CAN Controller Timing .......................................................................... 219
22.1.2. CAN Register Access............................................................................ 220
22.1.3. Example Timing Calculation for 1 Mbit/Sec Communication ................ 220
22.2. CAN Registers............................................................................................... 222
22.2.1. CAN Controller Protocol Registers........................................................ 222
22.2.2. Message Object Interface Registers..................................................... 222
22.2.3. Message Handler Registers.................................................................. 222
22.2.4. CAN Register Assignment .................................................................... 223
23. SMBus................................................................................................................... 226
23.1. Supporting Documents.................................................................................. 227
23.2. SMBus Configuration..................................................................................... 227
23.3. SMBus Operation .......................................................................................... 227
23.3.1. Transmitter vs. Receiver ....................................................................... 228
23.3.2. Arbitration.............................................................................................. 228
23.3.3. Clock Low Extension............................................................................. 228
23.3.4. SCL Low Timeout.................................................................................. 228
23.3.5. SCL High (SMBus Free) Timeout ......................................................... 229
23.4. Using the SMBus........................................................................................... 229
23.4.1. SMBus Configuration Register.............................................................. 229
23.4.2. SMB0CN Control Register .................................................................... 233
23.4.3. Data Register ........................................................................................ 236
23.5. SMBus Transfer Modes................................................................................. 236
23.5.1. Write Sequence (Master) ...................................................................... 237
23.5.2. Read Sequence (Master)...................................................................... 238
23.5.3. Write Sequence (Slave) ........................................................................ 239
23.5.4. Read Sequence (Slave)........................................................................ 240
23.6. SMBus Status Decoding................................................................................ 240
24. UART0................................................................................................................... 243
24.1. Baud Rate Generator .................................................................................... 243
24.2. Data Format................................................................................................... 245
24.3. Configuration and Operation ......................................................................... 246
24.3.1. Data Transmission ................................................................................ 246
24.3.2. Data Reception ..................................................................................... 246
24.3.3. Multiprocessor Communications........................................................... 247
25. Enhanced Serial Peripheral Interface (SPI0) ..................................................... 252
25.1. Signal Descriptions........................................................................................ 253
25.1.1. Master Out, Slave In (MOSI)................................................................. 253
25.1.2. Master In, Slave Out (MISO)................................................................. 253
6
Rev. 1.1
SILICON [ SILICON ]
