PIC18F2455_07 Datasheet, PDF (420/430 Pages) Microchip Technology – 28/40/44-Pin, High Performance, Enhanced Flash, USB Microcontrollers with nanoWatt Technology

PIC18F2455/2550/4455/4550
Pin Functions
MCLR/VPP/RE3 .................................................... 12, 16
NC/ICCK/ICPGC ........................................................ 21
NC/ICDT/ICPGD ........................................................ 21
NC/ICPORTS ............................................................. 21
NC/ICRST/ICVPP ....................................................... 21
OSC1/CLKI .......................................................... 12, 16
OSC2/CLKO/RA6 ................................................ 12, 16
RA0/AN0 .............................................................. 13, 17
RA1/AN1 .............................................................. 13, 17
RA2/AN2/VREF-/CVREF ........................................ 13, 17
RA3/AN3/VREF+ ................................................... 13, 17
RA4/T0CKI/C1OUT/RCV ..................................... 13, 17
RA5/AN4/SS/HLVDIN/C2OUT ............................. 13, 17
RB0/AN12/INT0/FLT0/SDI/SDA .......................... 14, 18
RB1/AN10/INT1/SCK/SCL ................................... 14, 18
RB2/AN8/INT2/VMO ............................................ 14, 18
RB3/AN9/CCP2/VPO ........................................... 14, 18
RB4/AN11/KBI0 ......................................................... 14
RB4/AN11/KBI0/CSSPP ............................................ 18
RB5/KBI1/PGM .................................................... 14, 18
RB6/KBI2/PGC .................................................... 14, 18
RB7/KBI3/PGD .................................................... 14, 18
RC0/T1OSO/T13CKI ........................................... 15, 19
RC1/T1OSI/CCP2/UOE ....................................... 15, 19
RC2/CCP1 ................................................................. 15
RC2/CCP1/P1A ......................................................... 19
RC4/D-/VM ........................................................... 15, 19
RC5/D+/VP .......................................................... 15, 19
RC6/TX/CK .......................................................... 15, 19
RC7/RX/DT/SDO ................................................. 15, 19
RD0/SPP0 .................................................................. 20
RD1/SPP1 .................................................................. 20
RD2/SPP2 .................................................................. 20
RD3/SPP3 .................................................................. 20
RD4/SPP4 .................................................................. 20
RD5/SPP5/P1B .......................................................... 20
RD6/SPP6/P1C .......................................................... 20
RD7/SPP7/P1D .......................................................... 20
RE0/AN5/CK1SPP ..................................................... 21
RE1/AN6/CK2SPP ..................................................... 21
RE2/AN7/OESPP ....................................................... 21
VDD ....................................................................... 15, 21
VSS ....................................................................... 15, 21
VUSB ..................................................................... 15, 21
Pinout I/O Descriptions
PIC18F2455/2550 ...................................................... 12
PIC18F4455/4550 ...................................................... 16
PIR Registers ................................................................... 102
PLL Frequency Multiplier ................................................... 26
HSPLL, XTPLL, ECPLL and ECPIO
Oscillator Modes ................................................ 26
PLL Lock Time-out ............................................................. 47
POP .................................................................................. 336
POR. See Power-on Reset.
PORTA
Associated Registers ............................................... 113
I/O Summary ............................................................ 112
LATA Register .......................................................... 111
PORTA Register ...................................................... 111
TRISA Register ........................................................ 111
PORTB
Associated Registers ............................................... 116
I/O Summary ............................................................ 115
LATB Register ......................................................... 114
PORTB Register ...................................................... 114
RB1/AN10/INT1/SCK/SCL Pin ................................ 209
RB7:RB4 Interrupt-on-Change Flag (RBIF Bit) ........ 114
TRISB Register ........................................................ 114
PORTC
Associated Registers ............................................... 119
I/O Summary ............................................................ 118
LATC Register ......................................................... 117
PORTC Register ...................................................... 117
TRISC Register ........................................................ 117
PORTD
Associated Registers ............................................... 122
I/O Summary ............................................................ 121
LATD Register ......................................................... 120
PORTD Register ...................................................... 120
TRISD Register ........................................................ 120
PORTE
Associated Registers ............................................... 124
I/O Summary ............................................................ 124
LATE Register ......................................................... 123
PORTE Register ...................................................... 123
TRISE Register ........................................................ 123
Postscaler, WDT
Assignment (PSA Bit) .............................................. 127
Rate Select (T0PS2:T0PS0 Bits) ............................. 127
Power-Managed Modes ..................................................... 35
and Multiple Sleep Commands .................................. 36
and PWM Operation ................................................ 161
Clock Sources ............................................................ 35
Clock Transitions and Status Indicators .................... 36
Entering ..................................................................... 35
Exiting Idle and Sleep Modes .................................... 41
by Interrupt ........................................................ 41
by Reset ............................................................ 41
by WDT Time-out .............................................. 41
Without an Oscillator Start-up Delay ................. 42
Idle ............................................................................. 39
Idle Modes
PRI_IDLE ........................................................... 40
RC_IDLE ........................................................... 41
SEC_IDLE ......................................................... 40
Run Modes ................................................................ 36
PRI_RUN ........................................................... 36
RC_RUN ............................................................ 37
SEC_RUN ......................................................... 36
Selecting .................................................................... 35
Sleep ......................................................................... 39
Summary (table) ........................................................ 35
Power-on Reset (POR) ...................................................... 45
Oscillator Start-up Timer (OST) ................................. 47
Power-up Timer (PWRT) ........................................... 47
Time-out Sequence ................................................... 47
Power-up Delays ............................................................... 33
Power-up Timer (PWRT) ............................................. 33, 47
Prescaler
Timer2 ..................................................................... 152
Prescaler, Timer0 ............................................................ 127
Assignment (PSA Bit) .............................................. 127
Rate Select (T0PS2:T0PS0 Bits) ............................. 127
DS39632D-page 418
Preliminary
© 2007 Microchip Technology Inc.