PIC16F5X
TABLE 5-3:
RESET CONDITIONS FOR ALL REGISTERS
Register
Address
Power-on Reset
MCLR or WDT Reset
W
N/A
N/A
N/A
00h
01h
02h
03h
04h
04h
04h
05h
06h
07h
08h
09h
xxxx xxxx
1111 1111
--11 1111
xxxx xxxx
xxxx xxxx
1111 1111
0001 1xxx
111x xxxx
1xxx xxxx
xxxx xxxx
---- xxxx
xxxx xxxx
xxxx xxxx
xxxx xxxx
xxxx ----
uuuu uuuu
1111 1111
--11 1111
uuuu uuuu
uuuu uuuu
1111 1111
000q quuu
111u uuuu
1uuu uuuu
uuuu uuuu
---- uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu ----
TRIS
OPTION
INDF
TMR0
PCL
STATUS
FSR(1)
FSR(2)
FSR(3)
PORTA
PORTB
PORTC(4)
PORTD(5)
PORTE(5)
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.
FIGURE 5-1:
SIMPLIFIED BLOCK DIAGRAM OF ON-CHIP RESET CIRCUIT
VDD
POR
MCLR/VPP
MCLR
Filter
S
R
Q
Chip Reset
WDT
Module
DRT
Reset
DS41213D-page 24
© 2007 Microchip Technology Inc.
MICROCHIP [ MICROCHIP ]
