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PIC18FXX20
DS39580A-page 348
Advance Information
2001 Microchip Technology Inc.
SPI
Master Mode
............................................................156
Serial Clock
..............................................................151
Serial Data In
...........................................................151
Serial Data Out
.........................................................151
Slave Select
.............................................................151
SPI Clock
.................................................................156
SPI Mode
.................................................................151
SPI Master/Slave Connection
..........................................155
SPI Module
Associated Registers
...............................................159
Bus Mode Compatability
..........................................159
Effects of a RESET
..................................................159
Master/Slave Connection
.........................................155
Slave Mode
..............................................................157
Slave Select Synchronization
...................................157
Slave Synch Timnig
.................................................157
Slave Timing with CKE = 0
......................................158
Slave Timing with CKE = 1
......................................158
SLEEP Operation
.....................................................159
SS
....................................................................................151
SSP
TMR2 Output for Clock Shift
............................ 135
,
136
TMR4 Output for Clock Shift
....................................142
SSPOV Status Flag
..........................................................181
SSPSTAT Register
R/W Bit
............................................................. 164
,
165
STATUS bits
Significance and Initialization Condition for
RCON Register
..................................................31
SUBFWB
..........................................................................286
SUBLW
............................................................................287
SUBWF
............................................................................287
SUBWFB
..........................................................................288
SWAPF
............................................................................288
T
Table Pointer Operations (table)
........................................64
TBLRD
.............................................................................289
TBLWT
.............................................................................290
Time-out in Various Situations
...........................................31
Timer0
..............................................................................127
16-bit Mode Timer Reads and Writes
......................129
Associated Registers
...............................................129
Clock Source Edge Select (T0SE Bit)
......................129
Clock Source Select (T0CS Bit)
...............................129
Operation
.................................................................129
Overflow Interrupt
.....................................................129
Prescaler. SeePrescaler, Timer0
Timing Diagram
........................................................316
Timer1
..............................................................................131
16-bit Read/Write Mode
...........................................133
Associated Registers
...............................................134
Operation
.................................................................132
Oscillator
.......................................................... 131
,
133
Overflow Interrupt
............................................. 131
,
133
Special Event Trigger (CCP)
............................ 133
,
146
Timing Diagram
........................................................316
TMR1H Register
......................................................131
TMR1L Register
.......................................................131
Timer2
.............................................................................. 135
Associated Registers
............................................... 136
Operation
................................................................. 135
Postscaler. See Postscaler, Timer2
PR2 Register
....................................................135
,
148
Prescaler. SeePrescaler, Timer2
SSP Clock Shift
................................................135
,
136
TMR2 Register
......................................................... 135
TMR2 to PR2 Match Interrupt
...................135
,
136
,
148
Timer3
.............................................................................. 137
Associated Registers
............................................... 139
Operation
................................................................. 138
Oscillator
...........................................................137
,
139
Overflow Interrupt
.............................................137
,
139
Special Event Trigger (CCP)
................................... 139
TMR3H Register
...................................................... 137
TMR3L Register
....................................................... 137
Timer4
.............................................................................. 141
Associated Registers
............................................... 142
Operation
................................................................. 141
Postscaler. See Postscaler, Timer4.
PR4 Register
........................................................... 141
Prescaler. SeePrescaler, Timer4.
SSP Clock Shift
....................................................... 142
TMR4 Register
......................................................... 141
TMR4 to PR4 Match Interrupt
...........................141
,
142
Timing Diagrams
.............................................................. 185
Baud Rate Generator with Clock Arbitration
............ 178
Clock Synchronization
............................................. 171
External Program Memory Bus (16-bit Mode)
........... 76
I
2
C Master Mode (7 or 10-bit Transmission)
............ 182
I
2
C Master Mode (7-bit Reception)
.......................... 183
I
2
C Master Mode First START Bit Timing
................ 179
I
2
C Mode
BRG Reset Due to SDA Arbitration During
START Condition
..................................... 187
Bus Collision
During a START Condition (SCL = 0)
...... 187
Bus Collision During a Repeated START
Condition (Case 2)
................................... 188
Bus Collision During a Repeated START
Condition (Case1)
.................................... 188
Bus Collision During a STOP Condition
(Case 2)
................................................... 189
Bus Collision During a STOP Condition
(Case1)
.................................................... 189
Bus Collision During START Condition
(SDA only)
............................................... 186
STOP Condition Receive or Transmit
Mode
........................................................ 184
I
2
C Slave Mode Timing (10-bit Reception)
.............. 173
I
2
C Slave Mode Timing (10-bit Reception,
SEN = 0)
.......................................................... 168
I
2
C Slave Mode Timing (10-bit Transmission)
......... 169
I
2
C Slave Mode Timing (7-bit Reception,
SEN = 0)
.......................................................... 166
I
2
C Slave Mode Timing (7-bit Reception,
SEN = 1)
.......................................................... 172
I
2
C Slave Mode Timing (7-bit Transmission)
........... 167
Low Voltage Detect
.................................................. 230