Datasheet

PIC16C5X
DS30453E-page 20 Preliminary  1997-2013 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 1xxx xxxx 1uuu uuuu
PORTA 05h ---- xxxx ---- uuuu
PORTB 06h xxxx xxxx uuuu uuuu
PORTC
(2)
07h xxxx xxxx uuuu uuuu
General Purpose Register Files 07-7Fh xxxx xxxx uuuu uuuu
Legend: x = unknown u = unchanged - = unimplemented, read as '0'
q = see tables in Table 5-1 for possible values.
Note 1: These values are valid for PIC16C57/CR57/C58/CR58. For the PIC16C54/CR54/C55/C56/CR56, the
value on RESET is 111x xxxx and for MCLR
and WDT Reset, the value is 111u uuuu.
2: General purpose register file on PIC16C54/CR54/C56/CR56/C58/CR58.
8-bit Asynch
Ripple Counter
(Device Reset
SQ
R
Q
VDD
MCLR/VPP pin
Power-Up
Detect
On-Chip
RC OSC
POR (Power-On Reset)
WDT Time-out
RESET
CHIP RESET
WDT
Timer)