PIC16F818/819
INDEX
A
A/D
Acquisition Requirements .......................................... 84
ADIF Bit ...................................................................... 83
Analog-to-Digital Converter ........................................ 81
Associated Registers ................................................. 87
Calculating Acquisition Time ...................................... 84
Configuring Analog Port Pins ..................................... 85
Configuring the Interrupt ............................................ 83
Configuring the Module .............................................. 83
Conversion Clock ....................................................... 85
Conversion Requirements ....................................... 142
Conversions ............................................................... 86
Converter Characteristics ........................................ 141
Delays ........................................................................ 84
Effects of a Reset ....................................................... 87
GO/DONE Bit ............................................................. 83
Internal Sampling Switch (Rss) Impedance ............... 84
Operation During Sleep ............................................. 87
Result Registers ......................................................... 86
Source Impedance ..................................................... 84
Time Delays ............................................................... 84
Use of the CCP Trigger .............................................. 87
Absolute Maximum Ratings ............................................. 117
ACK .................................................................................... 77
ADCON0 Register .............................................................. 81
ADCON1 Register .............................................................. 81
ADRESH Register ........................................................ 13, 81
ADRESH, ADRESL Register Pair ...................................... 83
ADRESL Register ........................................................ 14, 81
Application Notes
AN556 (Implementing a Table Read) ........................ 23
AN578 (Use of the SSP Module in the
I
2
C Multi-Master Environment) ........................... 71
AN607 (Power-up Trouble Shooting) ......................... 92
Assembler
MPASM Assembler .................................................. 111
RB5 Pin ..................................................................... 50
RB6 Pin ..................................................................... 51
RB7 Pin ..................................................................... 52
Recommended MCLR Circuit .................................... 92
SSP in I
2
C Mode ........................................................ 76
SSP in SPI Mode ....................................................... 74
System Clock ............................................................. 38
Timer0/WDT Prescaler .............................................. 53
Timer1 ....................................................................... 58
Timer2 ....................................................................... 63
Watchdog Timer (WDT) ............................................. 98
See
Brown-out Reset.
Brown-out Reset (BOR) .............................. 89, 91, 92, 93, 94
C
C Compilers
MPLAB C17 ............................................................. 112
MPLAB C18 ............................................................. 112
MPLAB C30 ............................................................. 112
Capture/Compare/PWM (CCP) ......................................... 65
Capture Mode ............................................................ 66
CCP Prescaler ................................................... 66
Pin Configuration ............................................... 66
Software Interrupt .............................................. 66
Timer1 Mode Selection ...................................... 66
Capture, Compare and Timer1
Associated Registers ......................................... 67
CCP1IF ...................................................................... 66
CCPR1 ...................................................................... 66
CCPR1H:CCPR1L ..................................................... 66
Compare Mode .......................................................... 67
Pin Configuration ............................................... 67
Software Interrupt Mode .................................... 67
Special Event Trigger ........................................ 67
Special Event Trigger
Output of CCP1 ......................................... 67
Timer1 Mode Selection ...................................... 67
PWM and Timer2
Associated Registers ......................................... 69
PWM Mode ................................................................ 68
Duty Cycle ......................................................... 68
Example Frequencies/Resolutions .................... 69
Period ................................................................ 68
Setup for Operation ........................................... 69
Timer Resources ....................................................... 65
CCP1M0 Bit ....................................................................... 65
CCP1M1 Bit ....................................................................... 65
CCP1M2 Bit ....................................................................... 65
CCP1M3 Bit ....................................................................... 65
CCP1X Bit .......................................................................... 65
CCP1Y Bit .......................................................................... 65
CCPR1H Register .............................................................. 65
CCPR1L Register .............................................................. 65
Code Examples
Changing Between Capture Prescalers ..................... 66
Changing Prescaler Assignment from
Timer0 to WDT .................................................. 55
Changing Prescaler Assignment from
WDT to Timer0 .................................................. 55
Clearing RAM Using Indirect Addressing .................. 23
Erasing a Flash Program Memory Row ..................... 29
Implementing a Real-Time Clock Using
a Timer1 Interrupt Service ................................. 62
Initializing PORTA ...................................................... 39
Reading a 16-Bit Free Running Timer ....................... 59
B
BF Bit ................................................................................. 77
Block Diagrams
A/D ............................................................................. 83
Analog Input Model .................................................... 84
Capture Mode Operation ........................................... 66
Compare Mode Operation ......................................... 67
In-Circuit Serial Programming
Connections ..................................................... 101
Interrupt Logic ............................................................ 96
On-Chip Reset Circuit ................................................ 91
PIC16F818/819 ............................................................ 6
PWM .......................................................................... 68
RA0/AN0:RA1/AN1 Pins ............................................ 40
RA2/AN2/V
REF
- Pin .................................................... 40
RA3/AN3/V
REF
+ Pin ................................................... 40
RA4/AN4/T0CKI Pin ................................................... 40
RA5/MCLR/V
PP
Pin ................................................... 41
RA6/OSC2/CLKO Pin ................................................ 41
RA7/OSC1/CLKI Pin .................................................. 42
RB0 Pin ...................................................................... 45
RB1 Pin ...................................................................... 46
RB2 Pin ...................................................................... 47
RB3 Pin ...................................................................... 48
RB4 Pin ...................................................................... 49
2004 Microchip Technology Inc.
DS39598E-page 165
MICROCHIP [ MICROCHIP TECHNOLOGY ]
