PIC16F84A datasheet(326/337 Pages) MICROCHIP

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PIC16C6X

DS30234D-page 326

LIST OF EQUATION AND EXAMPLES

Example 3-1: Instruction Pipeline Flow ............................. 18

Example 4-1: Call of a Subroutine in Page 1

from Page 0 ................................................ 49

Example 4-2: Indirect Addressing ..................................... 49

Example 5-1: Initializing PORTA....................................... 51

Example 5-2: Initializing PORTB....................................... 53

Example 5-3: Initializing PORTC ...................................... 55

Example 5-4: Read-Modify-Write Instructions on an

I/O Port ....................................................... 60

Example 7-1: Changing Prescaler (Timer0

→WDT).......... 69

Example 7-2: Changing Prescaler (WDT

→Timer0).......... 69

Example 8-1: Reading a 16-bit

Free-running Timer ..................................... 73

Example 10-1: Changing Between

Capture Prescalers ..................................... 79

Example 10-2: PWM Period and Duty

Cycle Calculation ........................................ 81

Example 11-1: Loading the SSPBUF

(SSPSR) Register ....................................... 86

Example 11-2: Loading the SSPBUF

(SSPSR) Register (PIC16C66/67) .............. 91

Example 12-1: Calculating Baud Rate Error ..................... 107

Example 13-1: Saving Status and W

Registers in RAM ...................................... 139

Example 13-2: Saving Status, W, and

PCLATH Registers in RAM

(All other PIC16C6X devices) ................... 139

LIST OF FIGURES

Figure 3-1:

PIC16C61 Block Diagram ........................... 10

Figure 3-2:

PIC16C62/62A/R62/64/64A/R64

Block Diagram ............................................ 11

Figure 3-3:

PIC16C63/R63/65/65A/R65

Block Diagram ............................................ 12

Figure 3-4:

PIC16C66/67 Block Diagram ...................... 13

Figure 3-5:

Clock/Instruction Cycle ............................... 18

Figure 4-1:

PIC16C61 Program Memory Map

and Stack .................................................... 19

Figure 4-2:

PIC16C62/62A/R62/64/64A/

R64 Program Memory Map and Stack ....... 19

Figure 4-3:

PIC16C63/R63/65/65A/R65 Program

Memory Map and Stack .............................. 19

Figure 4-4:

PIC16C66/67 Program Memory

Map and Stack ............................................ 20

Figure 4-5:

PIC16C61 Register File Map ...................... 20

Figure 4-6:

PIC16C62/62A/R62/64/64A/

R64 Register File Map ................................ 21

Figure 4-7:

PIC16C63/R63/65/65A/R65

Figure 4-8:

PIC16C66/67 Data Memory Map................ 22

Figure 4-9:

STATUS Register

(Address 03h, 83h, 103h, 183h) ................. 35

Figure 4-10:

OPTION Register

(Address 81h, 181h) ................................... 36

Figure 4-11:

INTCON Register

(Address 0Bh, 8Bh, 10Bh 18Bh)................. 37

Figure 4-12:

PIE1 Register for PIC16C62/62A/R62

(Address 8Ch)............................................. 38

Figure 4-13:

PIE1 Register for PIC16C63/R63/66

(Address 8Ch)............................................. 39

Figure 4-14:

PIE1 Register for PIC16C64/64A/R64

(Address 8Ch)............................................. 39

Figure 4-15:

PIE1 Register for PIC16C65/65A/R65/67

(Address 8Ch) ............................................ 40

Figure 4-16:

PIR1 Register for PIC16C62/62A/R62

(Address 0Ch) ............................................ 41

Figure 4-17:

PIR1 Register for PIC16C63/R63/66

Address 0Ch) ............................................. 42

Figure 4-18:

PIR1 Register for PIC16C64/64A/R64

(Address 0Ch) ............................................ 43

Figure 4-19:

PIR1 Register for PIC16C65/65A/R65/67

(Address 0Ch) ............................................ 44

Figure 4-20:

PIE2 Register (Address 8Dh) ..................... 45

Figure 4-21:

PIR2 Register (Address 0Dh) ..................... 46

Figure 4-22:

PCON Register for PIC16C62/64/65

(Address 8Eh) ............................................ 47

Figure 4-23:

PCON Register for PIC16C62A/R62/63/

R63/64A/R64/65A/R65/66/67

(Address 8Eh) ............................................ 47

Figure 4-24:

Loading of PC in Different Situations ......... 48

Figure 4-25:

Direct/Indirect Addressing .......................... 49

Figure 5-1:

Block Diagram of the

RA3:RA0 Pins and the RA5 Pin ................. 51

Figure 5-2:

Block Diagram of the RA4/T0CKI Pin......... 51

Figure 5-3:

Block Diagram of the

RB7:RB4 Pins for PIC16C61/62/64/65....... 53

Figure 5-4:

Block Diagram of the

RB7:RB4 Pins for PIC16C62A/63/R63/

64A/65A/R65/66/67 .................................... 54

Figure 5-5:

Block Diagram of the

RB3:RB0 Pins ............................................ 54

Figure 5-6:

PORTC Block Diagram .............................. 55

Figure 5-7:

PORTD Block Diagram

(In I/O Port Mode)....................................... 57

Figure 5-8:

PORTE Block Diagram

(In I/O Port Mode)...................................... 58

Figure 5-9:

TRISE Register (Address 89h) ................... 58

Figure 5-10:

Successive I/O Operation........................... 60

Figure 5-11:

PORTD and PORTE as a Parallel

Slave Port ................................................... 61

Figure 5-12:

Parallel Slave Port Write Waveforms ......... 62

Figure 5-13:

Parallel Slave Port Read Waveforms ......... 62

Figure 7-1:

Timer0 Block Diagram ................................ 65

Figure 7-2:

Timer0 Timing: Internal Clock/No

Prescaler .................................................... 65

Figure 7-3:

Timer0 Timing: Internal

Clock/Prescale 1:2 ..................................... 66

Figure 7-4:

TMR0 Interrupt Timing ............................... 66

Figure 7-5:

Timer0 Timing With External Clock ............ 67

Figure 7-6:

Block Diagram of the Timer0/WDT

Prescaler .................................................... 68

Figure 8-1:

T1CON: Timer1 Control Register

(Address 10h) ............................................. 71

Figure 8-2:

Timer1 Block Diagram ................................ 72

Figure 9-1:

Timer2 Block Diagram ................................ 75

Figure 9-2:

T2CON: Timer2 Control Register

(Address 12h) ............................................. 75

Figure 10-1:

CCP1CON Register (Address 17h) /

CCP2CON Register (Address 1Dh) ........... 78

Figure 10-2:

Capture Mode Operation

Block Diagram ............................................ 78

Figure 10-3:

Compare Mode Operation

Block Diagram ............................................ 79

Figure 10-4:

Simplified PWM Block Diagram.................. 80

Figure 10-5:

PWM Output ............................................... 80

Figure 11-1:

SSPSTAT: Sync Serial Port Status

PIC16F84A Datasheet(PDF) 326 Page - Microchip Technology

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