Datasheet
© 2009 Microchip Technology Inc. DS39632E-page 55
PIC18F2455/2550/4455/4550
CCPR1H 2455 2550 4455 4550 xxxx xxxx uuuu uuuu uuuu uuuu
CCPR1L 2455 2550 4455 4550 xxxx xxxx uuuu uuuu uuuu uuuu
CCP1CON 2455 2550
4455 4550 --00 0000 --00 0000 --uu uuuu
2455 2550 4455 4550 0000 0000 0000 0000 uuuu uuuu
CCPR2H 2455 2550 4455 4550 xxxx xxxx uuuu uuuu uuuu uuuu
CCPR2L 2455 2550 4455 4550 xxxx xxxx uuuu uuuu uuuu uuuu
CCP2CON 2455 2550 4455 4550 --00 0000 --00 0000 --uu uuuu
BAUDCON 2455 2550 4455 4550 0100 0-00 0100 0-00 uuuu u-uu
ECCP1DEL 2455 2550 4455 4550 0000 0000 0000 0000 uuuu uuuu
ECCP1AS 2455 2550 4455 4550 0000 0000 0000 0000 uuuu uuuu
CVRCON 2455 2550 4455 4550 0000 0000 0000 0000 uuuu uuuu
CMCON 2455 2550 4455 4550 0000 0111 0000 0111 uuuu uuuu
TMR3H 2455 2550 4455 4550 xxxx xxxx uuuu uuuu uuuu uuuu
TMR3L 2455 2550 4455 4550 xxxx xxxx uuuu uuuu uuuu uuuu
T3CON 2455 2550 4455 4550 0000 0000 uuuu uuuu uuuu uuuu
SPBRGH 2455 2550 4455 4550 0000 0000 0000 0000 uuuu uuuu
SPBRG 2455 2550 4455 4550 0000 0000 0000 0000 uuuu uuuu
RCREG 2455 2550 4455 4550 0000 0000 0000 0000 uuuu uuuu
TXREG 2455 2550 4455 4550 0000 0000 0000 0000 uuuu uuuu
TXSTA 2455 2550 4455 4550 0000 0010 0000 0010 uuuu uuuu
RCSTA 2455 2550 4455 4550 0000 000x 0000 000x uuuu uuuu
EEADR 2455 2550 4455 4550 0000 0000 0000 0000 uuuu uuuu
EEDATA 2455 2550 4455 4550 0000 0000 0000 0000 uuuu uuuu
EECON2 2455 2550 4455 4550 0000 0000 0000 0000 0000 0000
EECON1 2455 2550 4455 4550 xx-0 x000 uu-0 u000 uu-0 u000
TABLE 4-4: INITIALIZATION CONDITIONS FOR ALL REGISTERS (CONTINUED)
Register Applicable Devices
Power-on Reset,
Brown-out Reset
MCLR
Resets,
WDT Reset,
RESET Instruction,
Stack Resets
Wake-up via WDT
or Interrupt
Legend: u = unchanged, x = unknown, - = unimplemented bit, read as ‘0’, q = value depends on condition.
Shaded cells indicate conditions do not apply for the designated device.
Note 1: When the wake-up is due to an interrupt and the GIEL or GIEH bit is set, the TOSU, TOSH and TOSL are
updated with the current value of the PC. The STKPTR is modified to point to the next location in the
hardware stack.
2: One or more bits in the INTCONx or PIRx registers will be affected (to cause wake-up).
3: When the wake-up is due to an interrupt and the GIEL or GIEH bit is set, the PC is loaded with the interrupt
vector (0008h or 0018h).
4: See Table 4-3 for Reset value for specific condition.
5: PORTA<6>, LATA<6> and TRISA<6> are enabled depending on the oscillator mode selected. When not
enabled as PORTA pins, they are disabled and read ‘0’.