PIC16F627A Datasheet, PDF (165/168 Pages) Microchip Technology – FLASH-Based 8-Bit CMOS Microcontrollers

PIC16F627A/628A/648A
Q
Q-Clock ............................................................................... 59
Quick-Turnaround-Production (QTP) Devices ...................... 7
R
RC Oscillator ....................................................................... 96
RC Oscillator Mode
Block Diagram............................................................. 96
Registers
Maps
PIC16F627A ................................................. 16, 17
PIC16F628A ................................................. 16, 17
Reset................................................................................... 97
RETFIE Instruction............................................................ 120
RETLW Instruction ............................................................ 121
RETURN Instruction ......................................................... 121
Revision History ................................................................ 155
RLF Instruction.................................................................. 121
RRF Instruction ................................................................. 122
S
Serial Communication Interface (SCI) Module, See USART
Serialized Quick-Turnaround-Production (SQTP) Devices ... 7
SLEEP Instruction ............................................................. 122
Software Simulator (MPLAB SIM)..................................... 126
Special Event Trigger. See Compare
Special Features of the CPU .............................................. 93
Special Function Registers ................................................. 18
Status Register ................................................................... 22
SUBLW Instruction............................................................ 122
SUBWF Instruction ........................................................... 123
SWAPF Instruction............................................................ 123
T
T1CKPS0 bit ....................................................................... 48
T1CKPS1 bit ....................................................................... 48
T1OSCEN bit ...................................................................... 48
T1SYNC bit ......................................................................... 48
T2CKPS0 bit ....................................................................... 53
T2CKPS1 bit ....................................................................... 53
Timer0
Block Diagrams
Timer0/WDT ....................................................... 46
External Clock Input.................................................... 45
Interrupt....................................................................... 45
Prescaler..................................................................... 46
Switching Prescaler Assignment................................. 47
Timer0 Module ............................................................ 45
Timer1
Asynchronous Counter Mode ..................................... 50
Capacitor Selection..................................................... 51
External Clock Input.................................................... 49
External Clock Input Timing ........................................ 50
Oscillator ..................................................................... 51
Prescaler............................................................... 49, 51
Resetting Timer1......................................................... 51
Resetting Timer1 Registers......................................... 51
Special Event Trigger (CCP)....................................... 57
Synchronized Counter Mode ...................................... 49
Timer Mode ................................................................. 49
TMR1H........................................................................ 50
TMR1L ........................................................................ 50
Timer2
Block Diagram............................................................. 52
Postscaler ................................................................... 52
PR2 register................................................................ 52
Prescaler .............................................................. 52, 59
Timer2 Module............................................................ 52
TMR2 output............................................................... 52
TMR2 to PR2 Match Interrupt..................................... 58
Timing Diagrams
Timer0....................................................................... 143
Timer1....................................................................... 143
USART
Asynchronous Receiver...................................... 80
USART Asynchronous Master Transmission ............. 77
USART Asynchronous Reception .............................. 80
USART RX Pin Sampling ..................................... 75, 76
USART Synchronous Reception ................................ 86
USART Synchronous Transmission ........................... 84
Timing Diagrams and Specifications ................................ 140
TMR0 Interrupt.................................................................. 105
TMR1CS bit ........................................................................ 48
TMR1ON bit........................................................................ 48
TMR2ON bit........................................................................ 53
TOUTPS0 bit ...................................................................... 53
TOUTPS1 bit ...................................................................... 53
TOUTPS2 bit ...................................................................... 53
TOUTPS3 bit ...................................................................... 53
TRIS Instruction ................................................................ 123
TRISA ................................................................................. 31
TRISB ................................................................................. 36
U
Universal Synchronous Asynchronous Receiver Transmitter
(USART) ............................................................................. 69
Asynchronous Receiver
Setting Up Reception.......................................... 82
Asynchronous Receiver Mode
Address Detect ................................................... 82
Block Diagram .................................................... 82
USART
Asynchronous Mode................................................... 76
Asynchronous Receiver.............................................. 79
Asynchronous Reception............................................ 81
Asynchronous Transmission....................................... 77
Asynchronous Transmitter.......................................... 76
Baud Rate Generator (BRG) ...................................... 71
Block Diagrams
Transmit.............................................................. 77
USART Receive ................................................. 79
BRGH bit .................................................................... 71
Sampling......................................................... 72, 73, 74
Synchronous Master Mode......................................... 83
Synchronous Master Reception ................................. 85
Synchronous Master Transmission ............................ 83
Synchronous Slave Mode........................................... 86
Synchronous Slave Reception ................................... 87
Synchronous Slave Transmit...................................... 86
V
Voltage Reference
Configuration .............................................................. 67
Voltage Reference Module ......................................... 67
W
Watchdog Timer (WDT).................................................... 106
WWW, On-Line Support ....................................................... 3
 2002 Microchip Technology Inc.
Preliminary
DS40044A-page 163