PIC16F72 Datasheet, PDF (131/136 Pages) Microchip Technology – 28-Pin, 8-Bit CMOS FLASH MCU with A/D Converter

Timing Diagrams
A/D Conversion......................................................... 105
Brown-out Reset ......................................................... 96
Capture/Compare/PWM (CCP1)................................. 98
CLKO and I/O ............................................................. 95
External Clock............................................................. 94
I²C Bus Data ............................................................. 102
I²C Bus START/STOP bits........................................ 101
I²C Reception (7-bit Address) ..................................... 50
I²C Transmission (7-bit Address) ................................ 50
RESET, Watchdog Timer, Oscillator Start-up Timer
and Power-up Timer............................................... 96
Slow Rise Time (MCLR Tied to VDD Through
RC Network)........................................................... 68
SPI Master Mode ........................................................ 47
SPI Master Mode (CKE = 0, SMP = 0) ....................... 99
SPI Master Mode (CKE = 1, SMP = 1) ....................... 99
SPI Slave Mode (CKE = 0) ................................. 47, 100
SPI Slave Mode (CKE = 1) ................................. 47, 100
Time-out Sequence on Power-up (MCLR Tied to
VDD Through Pull-up Resistor)............................... 67
Time-out Sequence on Power-up (MCLR Tied to
VDD Through RC Network): Case 1 ....................... 67
Time-out Sequence on Power-up (MCLR Tied to
VDD Through RC Network): Case 2 ....................... 67
Timer0 and Timer1 External Clock.............................. 97
Wake-up from SLEEP through Interrupt ..................... 72
Timing Parameter Symbology............................................. 93
TMR1H Register ................................................................... 9
TMR1L Register .................................................................... 9
TMR2 Register ...................................................................... 9
TMR2ON bit ........................................................................ 36
TOUTPS0 bit....................................................................... 36
TOUTPS1 bit....................................................................... 36
TOUTPS2 bit....................................................................... 36
TOUTPS3 bit....................................................................... 36
TRISA Register ............................................................. 10, 21
TRISB Register ............................................................. 10, 23
TRISC Register ............................................................. 10, 25
PIC16F72
U
UA....................................................................................... 44
Update Address bit, UA ...................................................... 44
W
Wake-up from SLEEP................................................... 59, 71
Interrupts .............................................................. 65, 66
MCLR Reset ............................................................... 66
WDT Reset ................................................................. 66
Watchdog Timer (WDT)................................................ 59, 70
Associated Registers.................................................. 70
Enable (WDTEN bit) ................................................... 70
Postscaler. See Postscaler, WDT
Programming Considerations ..................................... 70
RC Oscillator .............................................................. 70
Time-out Period .......................................................... 70
WDT Reset, Normal Operation....................... 62, 65, 66
WDT Reset, SLEEP ....................................... 62, 65, 66
WCOL ................................................................................. 45
Write Collision Detect bit, WCOL........................................ 45
WWW, On-Line Support ....................................................... 3
 2002 Microchip Technology Inc.
DS39597B-page 129