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PIC18F2680ISPSQTP bảng dữ liệu(PDF) 476 Page - Microchip Technology |
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PIC18F2680ISPSQTP bảng dữ liệu(HTML) 476 Page - Microchip Technology |
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476 / 482 page  PIC18F2585/2680/4585/4680 DS39625C-page 474 Preliminary © 2007 Microchip Technology Inc. Timer0 .............................................................................. 147 Associated Registers ............................................... 149 Clock Source Edge Select (T0SE Bit) ...................... 148 Clock Source Select (T0CS Bit) ............................... 148 Operation ................................................................. 148 Overflow Interrupt .................................................... 149 Prescaler. See Prescaler, Timer0. Reads and Writes in 16-Bit Mode ............................ 148 Timer1 .............................................................................. 151 16-Bit Read/Write Mode ........................................... 153 Associated Registers ............................................... 155 Interrupt .................................................................... 154 Operation ................................................................. 152 Oscillator .................................................................. 153 Layout Considerations ..................................... 154 Resetting, Using a Special Event Trigger Output (CCP) ................................................... 154 Special Event Trigger (ECCP1) ............................... 174 Use as a Real-Time Clock ....................................... 154 Timer2 .............................................................................. 157 Associated Registers ............................................... 158 Interrupt .................................................................... 158 Operation ................................................................. 157 Output ...................................................................... 158 PR2 Register .................................................... 169, 175 TMR2 to PR2 Match Interrupt .......................... 169, 175 Timer3 .............................................................................. 159 16-Bit Read/Write Mode ........................................... 161 Associated Registers ............................................... 161 Operation ................................................................. 160 Oscillator .................................................. 151, 159, 161 Overflow Interrupt .................................... 151, 159, 161 Special Event Trigger (CCP) .................................... 161 TMR3H Register .............................................. 151, 159 TMR3L Register ............................................... 151, 159 Timing Diagrams A/D Conversion ........................................................ 450 Acknowledge Sequence .......................................... 220 Asynchronous Reception ......................................... 239 Asynchronous Transmission .................................... 237 Asynchronous Transmission (Back to Back) ........... 237 Automatic Baud Rate Calculation ............................ 235 Auto-Wake-up Bit (WUE) During Normal Operation ............................................. 240 Auto-Wake-up Bit (WUE) During Sleep ................... 240 Baud Rate Generator with Clock Arbitration ............ 214 BRG Overflow Sequence ......................................... 235 BRG Reset Due to SDA Arbitration During Start Condition ................................................. 223 Brown-out Reset (BOR) ........................................... 436 Bus Collision During a Repeated Start Condition (Case 1) .................................. 224 Bus Collision During a Repeated Start Condition (Case 2) .................................. 224 Bus Collision During a Start Condition (SCL = 0) ......................................... 223 Bus Collision During a Start Condition (SDA Only) ....................................... 222 Bus Collision During a Stop Condition (Case 1) ........................................... 225 Bus Collision During a Stop Condition (Case 2) ........................................... 225 Bus Collision for Transmit and Acknowledge ........... 221 Capture/Compare/PWM (CCP) ................................ 438 CLKO and I/O .......................................................... 435 Clock Synchronization ............................................. 207 Clock/Instruction Cycle .............................................. 65 EUSART Synchronous Receive (Master/Slave) ................................................. 448 EUSART Synchronous Transmission (Master/Slave) ................................................. 448 Example SPI Master Mode (CKE = 0) ..................... 440 Example SPI Master Mode (CKE = 1) ..................... 441 Example SPI Slave Mode (CKE = 0) ....................... 442 Example SPI Slave Mode (CKE = 1) ....................... 443 External Clock (All Modes Except PLL) ................... 433 Fail-Safe Clock Monitor ........................................... 356 First Start Bit Timing ................................................ 215 Full-Bridge PWM Output .......................................... 179 Half-Bridge PWM Output ......................................... 178 High/Low-Voltage Detect ......................................... 270 I2C Bus Data ............................................................ 444 I2C Bus Start/Stop Bits ............................................ 444 I2C Master Mode (7 or 10-Bit Transmission) ........... 218 I2C Master Mode (7-Bit Reception) .......................... 219 I2C Slave Mode (10-Bit Reception, SEN = 0) .......... 204 I2C Slave Mode (10-Bit Reception, SEN = 1) .......... 209 I2C Slave Mode (10-Bit Transmission) .................... 205 I2C Slave Mode (7-Bit Reception, SEN = 0) ............ 202 I2C Slave Mode (7-Bit Reception, SEN = 1) ............ 208 I2C Slave Mode (7-Bit Transmission) ...................... 203 I2C Slave Mode General Call Address Sequence (7 or 10-Bit Address Mode) ............ 210 Master SSP I2C Bus Data ........................................ 446 Master SSP I2C Bus Start/Stop Bits ........................ 446 Parallel Slave Port (PIC18F4585/4680) ................... 439 Parallel Slave Port (PSP) Read ............................... 145 Parallel Slave Port (PSP) Write ............................... 145 PWM Auto-Shutdown (PRSEN = 0, Auto-Restart Disabled) .................................... 184 PWM Auto-Shutdown (PRSEN = 1, Auto-Restart Enabled) ..................................... 184 PWM Direction Change ........................................... 181 PWM Direction Change at Near 100% Duty Cycle ............................................. 181 PWM Output ............................................................ 169 Repeat Start Condition ............................................ 216 Reset, Watchdog Timer (WDT), Oscillator Start-up Timer (OST) and Power-up Timer (PWRT) ................................................. 436 Send Break Character Sequence ............................ 241 Slave Synchronization ............................................. 193 Slow Rise Time (MCLR Tied to VDD, VDD Rise > TPWRT) ............................................ 47 SPI Mode (Master Mode) ......................................... 192 SPI Mode (Slave Mode with CKE = 0) ..................... 194 SPI Mode (Slave Mode with CKE = 1) ..................... 194 Stop Condition Receive or Transmit Mode .............. 220 Synchronous Reception (Master Mode, SREN) ..................................... 244 Synchronous Transmission ..................................... 242 Synchronous Transmission (Through TXEN) .......... 243 Time-out Sequence on POR w/PLL Enabled (MCLR Tied to VDD) .......................................... 47 Time-out Sequence on Power-up (MCLR Not Tied to VDD), Case 1 ...................... 46 Time-out Sequence on Power-up (MCLR Not Tied to VDD), Case 2 ...................... 46 Time-out Sequence on Power-up (MCLR Tied to VDD, VDD Rise TPWRT) .............. 46 |
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