Datasheet

 1998-2013 Microchip Technology Inc. DS30289C-page 27
PIC17C7XX
TABLE 5-4: INITIALIZATION CONDITIONS FOR SPECIAL FUNCTION REGISTERS
Register Address
Power-on Reset
Brown-out Reset
MCLR
Reset
WDT Reset
Wake-up from SLEEP
through Interrupt
Unbanked
INDF0 00h N/A N/A N/A
FSR0 01h xxxx xxxx uuuu uuuu uuuu uuuu
PCL 02h 0000h 0000h PC + 1
(2)
PCLATH 03h 0000 0000 uuuu uuuu uuuu uuuu
ALUSTA 04h 1111 xxxx 1111 uuuu 1111 uuuu
T0STA 05h 0000 000- 0000 000- 0000 000-
CPUSTA
(3)
06h --11 11qq --11 qquu --uu qquu
INTSTA 07h 0000 0000 0000 0000 uuuu uuuu
(1)
INDF1 08h N/A N/A N/A
FSR1 09h xxxx xxxx uuuu uuuu uuuu uuuu
WREG 0Ah xxxx xxxx uuuu uuuu uuuu uuuu
TMR0L 0Bh xxxx xxxx uuuu uuuu uuuu uuuu
TMR0H 0Ch xxxx xxxx uuuu uuuu uuuu uuuu
TBLPTRL 0Dh 0000 0000 0000 0000 uuuu uuuu
TBLPTRH 0Eh 0000 0000 0000 0000 uuuu uuuu
BSR 0Fh 0000 0000 0000 0000 uuuu uuuu
Bank 0
PORTA
(4,6)
10h 0-xx 11xx 0-uu 11uu u-uu uuuu
DDRB 11h 1111 1111 1111 1111 uuuu uuuu
PORTB
(4)
12h xxxx xxxx uuuu uuuu uuuu uuuu
RCSTA1 13h 0000 -00x 0000 -00u uuuu -uuu
RCREG1 14h xxxx xxxx uuuu uuuu uuuu uuuu
TXSTA1 15h 0000 --1x 0000 --1u uuuu --uu
TXREG1 16h xxxx xxxx uuuu uuuu uuuu uuuu
SPBRG1 17h 0000 0000 0000 0000 uuuu uuuu
Legend: u = unchanged,
x = unknown, - = unimplemented, read as '0', q = value depends on condition
Note 1: One or more bits in INTSTA, PIR1, PIR2 will be affected (to cause wake-up).
2: When the wake-up is due to an interrupt and the GLINTD bit is cleared, the PC is loaded with the interrupt
vector.
3: See Table 5-3 for RESET value of specific condition.
4: This is the value that will be in the port output latch.
5: When the device is configured for Microprocessor or Extended Microcontroller mode, the operation of this
port does not rely on these registers.
6: On any device RESET, these pins are configured as inputs.