Datasheet

 2001-2013 Microchip Technology Inc. DS39598F-page 169
PIC16F818/819
TMR0IE Bit .................................................................18
Internal Oscillator Block .....................................................35
INTRC Modes ............................................................35
Internet Address ............................................................... 173
Interrupt Sources .......................................................... 89, 96
RB0/INT Pin, External ................................................ 97
TMR0 Overflow .......................................................... 97
Interrupts
RB7:RB4 Port Change ............................................... 43
Synchronous Serial Port Interrupt .............................. 20
Interrupts, Context Saving During ......................................97
Interrupts, Enable Bits
Global Interrupt Enable (GIE Bit) ............................... 96
Interrupt-on-Change (RB7:RB4) Enable
(RBIE Bit) ...........................................................97
RB0/INT Enable (INTE Bit) ........................................ 18
TMR0 Overflow Enable (TMR0IE Bit) ........................ 18
Interrupts, Enable bits
Global Interrupt Enable (GIE Bit) ............................... 18
Interrupts, Flag Bits
Interrupt-on-Change (RB7:RB4) Flag
(RBIF Bit) ............................................................. 18, 97
RB0/INT Flag (INTF Bit) .............................................18
TMR0 Overflow Flag (TMR0IF Bit) .............................97
INTRC Modes
Adjustment ................................................................. 36
L
Loading of PC ....................................................................23
Low-Voltage ICSP Programming .....................................102
M
Master Clear (MCLR)
MCLR
Reset, Normal Operation .....................91, 93, 94
MCLR
Reset, Sleep ........................................91, 93, 94
Operation and ESD Protection ................................... 92
Memory Organization ...........................................................9
Data Memory ............................................................. 10
Program Memory ......................................................... 9
Microchip Internet Web Site .............................................173
MPLAB ASM30 Assembler, Linker, Librarian ..................112
MPLAB Integrated Development
Environment Software .............................................. 111
MPLAB PM3 Device Programmer ....................................114
MPLAB REAL ICE In-Circuit Emulator System ................113
MPLINK Object Linker/MPLIB Object Librarian ...............112
O
Opcode Field Descriptions ............................................... 103
OPTION_REG Register .....................................................15
INTEDG Bit .......................................................... 17, 54
PS2:PS0 Bits .............................................................17
PSA Bit ....................................................................... 17
RBPU
Bit .............................................................. 17, 54
T0CS Bit .....................................................................17
T0SE Bit ..................................................................... 17
Oscillator Configuration ...................................................... 33
ECIO ..........................................................................33
EXTCLK ..................................................................... 93
EXTRC ....................................................................... 93
HS ........................................................................ 33, 93
INTIO1 .......................................................................33
INTIO2 .......................................................................33
INTRC ........................................................................ 93
LP ......................................................................... 33, 93
RC ........................................................................ 33, 35
RCIO .......................................................................... 33
XT .........................................................................33, 93
Oscillator Control Register ................................................. 37
Modifying IRCF Bits ................................................... 37
Clock Transition Sequence ................................ 37
Oscillator Start-up Timer (OST) ....................................89, 92
Oscillator, WDT .................................................................. 98
P
Packaging Information ..................................................... 155
Marking .................................................................... 155
PCFG0 Bit .......................................................................... 82
PCFG1 Bit .......................................................................... 82
PCFG2 Bit .......................................................................... 82
PCFG3 Bit .......................................................................... 82
PCL Register .................................................... 13, 14, 15, 23
PCLATH Register .............................................13, 14, 15, 23
PCON Register .................................................................. 93
POR
Bit ...................................................................... 22
Pinout Descriptions
PIC16F818/819 ........................................................... 7
Pointer, FSR ...................................................................... 23
POP ................................................................................... 23
POR. See Power-on Reset.
PORTA ................................................................................ 7
Associated Register Summary .................................. 39
Functions ................................................................... 39
PORTA Register ........................................................ 39
TRISA Register .......................................................... 39
PORTA Register ................................................................ 13
PORTB ................................................................................ 8
Associated Register Summary .................................. 44
Functions ................................................................... 44
PORTB Register ........................................................ 43
Pull-up Enable (RBPU
Bit) ....................................17, 54
RB0/INT Edge Select (INTEDG Bit) .....................17, 54
RB0/INT Pin, External ................................................ 97
RB7:RB4 Interrupt-on-Change .................................. 97
RB7:RB4 Interrupt-on-Change Enable
(RBIE Bit) ........................................................... 97
RB7:RB4 Interrupt-on-Change Flag
(RBIF Bit) ......................................................18, 97
TRISB Register .......................................................... 43
PORTB Register ...........................................................13, 15
Postscaler, WDT
Assignment (PSA Bit) ................................................ 17
Rate Select (PS2:PS0 Bits) ....................................... 17
Power-Down Mode. See Sleep.
Power-on Reset (POR) ............................... 89, 91, 92, 93, 94
POR Status (POR
Bit) ............................................... 22
Power Control (PCON) Register ................................ 93
Power-Down (PD
Bit) ................................................. 91
Time-out (TO
Bit) ..................................................16, 91
Power-up Timer (PWRT) ..............................................89, 92
PR2 Register ..................................................................... 63
Prescaler, Timer0
Assignment (PSA Bit) ................................................ 17
Rate Select (PS2:PS0 Bits) ....................................... 17
Program Counter
Reset Conditions ....................................................... 93