Datasheet

PIC16F5X
DS41213D-page 24 © 2007 Microchip Technology Inc.
TABLE 5-3: RESET CONDITIONS FOR ALL REGISTERS
FIGURE 5-1: SIMPLIFIED BLOCK DIAGRAM OF ON-CHIP RESET CIRCUIT
Register Address Power-on Reset MCLR or WDT Reset
WN/Axxxx xxxx uuuu uuuu
TRIS N/A 1111 1111 1111 1111
OPTION N/A --11 1111 --11 1111
INDF 00h xxxx xxxx uuuu uuuu
TMR0 01h xxxx xxxx uuuu uuuu
PCL 02h 1111 1111 1111 1111
STATUS 03h 0001 1xxx 000q quuu
FSR
(1)
04h 111x xxxx 111u uuuu
FSR
(2)
04h 1xxx xxxx 1uuu uuuu
FSR
(3)
04h xxxx xxxx uuuu uuuu
PORTA 05h ---- xxxx ---- uuuu
PORTB 06h xxxx xxxx uuuu uuuu
PORTC
(4)
07h xxxx xxxx uuuu uuuu
PORTD
(5)
08h xxxx xxxx uuuu uuuu
PORTE
(5)
09h xxxx ---- uuuu ----
Legend: u = unchanged, x = unknown, – = unimplemented, read as ‘0’, q = see tables in Table 5-1 for possible
values.
Note 1: PIC16F54 only.
2: PIC16F57 only.
3: PIC16F59 only.
4: General purpose register file on PIC16F54.
5: General purpose register file on PIC16F54 and PIC16F57.
S
R
Q
VDD
MCLR/VPP
Chip Reset
WDT
POR
MCLR
Filter
Module
DRT
Reset