PIC12F1516 MICROCHIP [Microchip Technology], PIC12F1516 Datasheet - Page 72

• Manufacturer Part Number: PIC12F1516
• Description: 28/40/44-Pin Flash Microcontrollers with nanoWatt XLP Technology
• Manufacturer: MICROCHIP [Microchip Technology]

PIC16(L)F1516/7/8/9
6.11
Upon any Reset, multiple bits in the STATUS and
PCON register are updated to indicate the cause of the
Reset.
tions of these registers.
TABLE 6-3:
TABLE 6-4:
DS41452B-page 72
Power-on Reset
MCLR Reset during normal operation
MCLR Reset during Sleep
WDT Reset
WDT Wake-up from Sleep
Brown-out Reset
Interrupt Wake-up from Sleep
RESET Instruction Executed
Stack Overflow Reset (STVREN = 1)
Stack Underflow Reset (STVREN = 1)
Legend: u = unchanged, x = unknown, - = unimplemented bit, reads as ‘0’.
Note 1: When the wake-up is due to an interrupt and Global Enable bit (GIE) is set, the return address is pushed on
STKOVF STKUNF RWDT RMCLR
0
0
0
0
u
u
u
u
u
u
1
u
2: If a Status bit is not implemented, that bit will be read as ‘0’.
Table 6-3
Determining the Cause of a Reset
the stack and PC is loaded with the interrupt vector (0004h) after execution of PC + 1.
0
0
0
0
u
u
u
u
u
u
u
1
and
RESET STATUS BITS AND THEIR SIGNIFICANCE
RESET CONDITION FOR SPECIAL REGISTERS
Table 6-4
1
1
1
u
0
u
u
u
u
u
u
u
Condition
show the Reset condi-
1
1
1
1
u
u
u
0
0
u
u
u
RI
1
1
1
1
u
u
u
u
u
0
u
u
POR
Preliminary
0
0
0
u
u
u
u
u
u
u
u
u
BOR
x
x
x
0
u
u
u
u
u
u
u
u
Program
PC + 1
Counter
PC + 1
0000h
0000h
0000h
0000h
0000h
0000h
0000h
0000h
TO
1
0
x
1
0
0
1
u
1
u
u
u
(1)
PD
(2)
1
x
0
1
u
0
0
u
0
u
u
u
---1 1000
---u uuuu
---1 0uuu
---0 uuuu
---0 0uuu
---1 1uuu
---1 0uuu
---u uuuu
---u uuuu
---u uuuu
Power-on Reset
Illegal, TO is set on POR
Illegal, PD is set on POR
Brown-out Reset
WDT Reset
WDT Wake-up from Sleep
Interrupt Wake-up from Sleep
MCLR Reset during normal operation
MCLR Reset during Sleep
RESET Instruction Executed
Stack Overflow Reset (STVREN = 1)
Stack Underflow Reset (STVREN = 1)
Register
STATUS
 2011 Microchip Technology Inc.
Condition
00-1 110x
uu-u 0uuu
uu-u 0uuu
uu-0 uuuu
uu-u uuuu
00-1 11u0
uu-u uuuu
uu-u u0uu
1u-u uuuu
u1-u uuuu
Register
PCON