
 2004 Microchip Technology Inc.
Preliminary
DS39636A-page 373
PIC18F2X1X/4X1X
CLKO and I/O ..........................................................335
Clock Synchronization .............................................171
Clock/Instruction Cycle ..............................................57
Example SPI Master Mode (CKE = 0) .....................340
Example SPI Master Mode (CKE = 1) .....................341
Example SPI Slave Mode (CKE = 0) .......................342
Example SPI Slave Mode (CKE = 1) .......................343
External Clock (All Modes except PLL) ....................333
Fail-Safe Clock Monitor ............................................250
First Start Bit Timing ................................................179
Full-Bridge PWM Output ..........................................143
Half-Bridge PWM Output .........................................142
High/Low-Voltage Detect Characteristics ................330
High-Voltage Detect (VDIRMAG = 1) ......................234
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2
C Bus Data ............................................................344
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2
C Bus Start/Stop Bits .............................................344
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2
C Master Mode (7 or 
10-Bit Transmission) ........................................182
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2
C Master Mode (7-Bit Reception) ..........................183
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2
C Slave Mode (10-Bit Reception, 
SEN = 0) ..........................................................168
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2
C Slave Mode (10-Bit Reception, 
SEN = 1) ..........................................................173
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2
C Slave Mode (10-Bit Transmission) .....................169
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2
C Slave Mode (7-Bit Reception, 
SEN = 0) ..........................................................166
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2
C Slave Mode (7-Bit Reception, 
SEN = 1) ..........................................................172
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2
C Slave Mode (7-Bit Transmission) .......................167
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2
C Slave Mode General Call Address 
Sequence (7 or 10-Bit Address Mode) ............174
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2
C Stop Condition Receive or 
Transmit Mode .................................................184
Low-Voltage Detect (VDIRMAG = 0) .......................233
Master SSP I
2
C Bus Data ........................................346
Master SSP I
2
C Bus Start/Stop Bits ........................346
Parallel Slave Port 
(PIC18F4410/4510/4515/4610) .......................339
Parallel Slave Port (PSP) Read ...............................111
Parallel Slave Port (PSP) Write ...............................111
PWM Auto-Shutdown (PRSEN = 0, 
Auto-Restart Disabled) ....................................148
PWM Auto-Shutdown (PRSEN = 1, 
Auto-Restart Enabled) .....................................148
PWM Direction Change ...........................................145
PWM Direction Change at Near 
100% Duty Cycle .............................................145
PWM Output ............................................................134
Repeat Start Condition .............................................180
Reset, Watchdog Timer (WDT), 
Oscillator Start-up Timer (OST), 
Power-up Timer (PWRT) .................................336
Send Break Character Sequence ............................205
Slave Synchronization .............................................157
Slow Rise Time (MCLR Tied to V
DD
, 
V
DD
 Rise > T
PWRT
) ............................................47
SPI Mode (Master Mode) .........................................156
SPI Mode (Slave Mode, CKE = 0) ...........................158
SPI Mode (Slave Mode, CKE = 1) ...........................158
Synchronous Reception 
(Master Mode, SREN) .....................................208
Synchronous Transmission ..................................... 206
Synchronous Transmission 
(Through TXEN) .............................................. 207
Time-out Sequence on POR w/PLL 
Enabled (MCLR Tied to V
DD
) ............................ 47
Time-out Sequence on Power-up 
(MCLR Not Tied to V
DD
, Case 1) ...................... 46
Time-out Sequence on Power-up 
(MCLR Not Tied to V
DD
, Case 2) ...................... 46
Time-out Sequence on Power-up 
(MCLR Tied to V
DD
, V
DD
 Rise < T
PWRT
) ........... 46
Timer0 and Timer1 External Clock .......................... 337
Transition for Entry to Idle Mode ............................... 38
Transition for Entry to SEC_RUN Mode .................... 35
Transition for Entry to Sleep Mode ............................ 37
Transition for Two-Speed Start-up 
(INTOSC to HSPLL) ........................................ 248
Transition for Wake from Idle to 
Run Mode .......................................................... 38
Transition for Wake from Sleep (HSPLL) .................. 37
Transition from RC_RUN Mode to 
PRI_RUN Mode ................................................. 36
Transition from SEC_RUN Mode to 
PRI_RUN Mode (HSPLL) .................................. 35
Transition to RC_RUN Mode ..................................... 36
USART Synchronous Receive 
(Master/Slave) ................................................. 348
USART Synchronous Transmission 
(Master/Slave) ................................................. 348
Timing Diagrams and Specifications ............................... 333
A/D Conversion Requirements ................................ 350
Capture/Compare/PWM (CCP) 
Requirements .................................................. 338
CLKO and I/O Requirements ................................... 335
Example SPI Mode Requirements 
(Master Mode, CKE = 0) .................................. 340
Example SPI Mode Requirements 
(Master Mode, CKE = 1) .................................. 341
Example SPI Mode Requirements 
(Slave Mode, CKE = 0) .................................... 342
Example SPI Mode Requirements 
(Slave Mode, CKE = 1) .................................... 343
External Clock Requirements .................................. 333
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2
C Bus Data Requirements 
(Slave Mode) ................................................... 345
Master SSP I
2
C Bus Data Requirements ................ 347
Master SSP I
2
C Bus Start/Stop Bits 
Requirements .................................................. 346
Parallel Slave Port Requirements 
(PIC18F4410/4510/4515/4610) ....................... 339
PLL Clock ................................................................ 334
Reset, Watchdog Timer, 
Oscillator Start-up Timer, 
Power-up Timer and 
Brown-out Reset Requirements ...................... 336
Timer0 and Timer1 External 
Clock Requirements ........................................ 337
USART Synchronous 
Receive Requirements .................................... 348
USART Synchronous 
Transmission Requirements ............................ 348