PIC16F87 Datasheet, PDF(204/214 Page) Microchip Technology – 18/20/28-Pin Enhanced FLASH Microcontrollers with nanoWatt Technology

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PIC16F87 Datasheet, PDF (204/214 Pages) Microchip Technology – 18/20/28-Pin Enhanced FLASH Microcontrollers with nanoWatt Technology

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PIC16F87/88

CCPR1L Register ......................................................... 14, 81

Clock Sources .................................................................... 39

Selection Using OSCCON Register ........................... 39

Clock Switching .................................................................. 39

Transition and the Watchdog Timer ........................... 40

CMCON Register ............................................................... 15

Code Examples

Call of a Subroutine in Page 1 from Page 0 ............... 25

Changing Between Capture Prescalers ..................... 82

Changing Prescaler Assignment from

WDT to Timer0 ................................................... 69

Erasing a FLASH Program Memory Row .................. 31

Implementing a Real-Time Clock Using a

Timer1 Interrupt Service .................................... 77

Indirect Addressing .................................................... 26

Initializing PORTA ...................................................... 51

Reading a 16-bit Free-Running Timer ........................ 74

Reading Data EEPROM ............................................. 29

Reading FLASH Program Memory ............................ 30

Saving STATUS, W and PCLATH Registers ........... 140

Writing a 16-bit Free-Running Timer .......................... 74

Writing to Data EEPROM ........................................... 29

Writing to FLASH Program Memory ........................... 33

Code Protection ....................................................... 129, 147

Comparator Module ......................................................... 121

Analog Input Connection Considerations ................. 125

Associated Registers ............................................... 126

Configuration ............................................................ 122

Effects of a RESET .................................................. 125

Interrupts .................................................................. 124

Operation ................................................................. 123

Operation During SLEEP ......................................... 125

Outputs ..................................................................... 123

Reference ................................................................. 123

Response Time ........................................................ 123

Comparator Specifications ............................................... 175

Comparator Voltage Reference ....................................... 127

Associated Registers ............................................... 128

Computed GOTO ............................................................... 25

Configuration Bits ............................................................. 129

Crystal and Ceramic Resonators ....................................... 35

CVRCON Register ............................................................. 15

Data EEPROM Memory ..................................................... 27

Associated Registers ................................................. 34

EEADR Register ........................................................ 27

EEADRH Register ...................................................... 27

EECON1 Register ...................................................... 27

EECON2 Register ...................................................... 27

EEDATA Register ...................................................... 27

EEDATH Register ...................................................... 27

Operation During Code Protect .................................. 34

Protection Against Spurious Writes ............................ 34

Reading ...................................................................... 29

Write Complete Flag (EEIF Bit) .................................. 27

Writing ........................................................................ 29

Data Memory

Special Function Registers ........................................ 14

DC and AC Characteristics

Graphs and Tables ................................................... 191

DC Characteristics

Internal RC Accuracy ............................................... 172

PIC16F87/88, PIC16LF87/88 ................................... 173

Power-down and Supply Current ............................. 166

Supply Voltage ......................................................... 165

DS30487B-page 202

Demonstration Boards

PICDEM 1 ................................................................ 160

PICDEM 17 .............................................................. 160

PICDEM 18R PIC18C601/801 ................................. 161

PICDEM 2 Plus ........................................................ 160

PICDEM 3 PIC16C92X ............................................ 160

PICDEM 4 ................................................................ 160

PICDEM LIN PIC16C43X ........................................ 161

PICDEM USB PIC16C7X5 ...................................... 161

PICDEM.net Internet/Ethernet ................................. 160

Development Support ...................................................... 157

Device Differences ........................................................... 199

Device Overview .................................................................. 5

Direct Addressing ............................................................... 26

EEADR Register ...........................................................16, 27

EEADRH Register .........................................................16, 27

EECON1 Register .........................................................16, 27

EECON2 Register .........................................................16, 27

EEDATA Register .........................................................16, 27

EEDATH Register .........................................................16, 27

Electrical Characteristics .................................................. 163

Endurance ........................................................................... 1

Errata ................................................................................... 4

Evaluation and Programming Tools ................................. 161

Exiting SLEEP with an Interrupt ......................................... 50

External Clock Input ........................................................... 36

External Clock Input (RA4/T0CKI). See Timer0.

External Interrupt Input (RB0/INT). See Interrupt Sources.

External Reference Signal ............................................... 123

Fail-Safe Clock Monitor .............................................129, 144

FLASH Program Memory ................................................... 27

Associated Registers ................................................. 34

EEADR Register ........................................................ 27

EEADRH Register ..................................................... 27

EECON1 Register ...................................................... 27

EECON2 Register ...................................................... 27

EEDATA Register ...................................................... 27

EEDATH Register ...................................................... 27

Erasing ....................................................................... 30

Reading ..................................................................... 30

Writing ........................................................................ 32

FSR Register ..........................................................14, 15, 26

I/O Ports ............................................................................. 51

PORTA ...................................................................... 51

PORTB ...................................................................... 57

TRISB Register .......................................................... 57

I2C

Addressing ................................................................. 93

Associated Registers ................................................. 95

Master Mode .............................................................. 95

Mode .......................................................................... 92

Mode Selection .......................................................... 92

Multi-Master Mode ..................................................... 95

Reception ................................................................... 93

SCL and SDA pins ..................................................... 92

Slave Mode ................................................................ 92

Transmission ............................................................. 93

ID Locations ..............................................................129, 147

In-Circuit Debugger .......................................................... 147

In-Circuit Serial Programming .......................................... 129

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