PIC16C63A/65B/73B/74B
TABLE 13-3: TIME-OUT IN VARIOUS SITUATIONS
Power-up
Oscillator Configuration
Brown-out
Wake-up from SLEEP
PWRTE = 0
72 ms + 1024TOSC
72 ms
PWRTE = 1
1024TOSC
—
XT, HS, LP
RC
72 ms + 1024TOSC
72 ms
1024TOSC
—
TABLE 13-4: STATUS BITS AND THEIR SIGNIFICANCE
POR
0
BOR
TO
1
PD
1
x
x
x
0
1
1
1
1
Power-on Reset
0
0
x
Illegal, TO is set on POR
Illegal, PD is set on POR
Brown-out Reset
0
x
0
1
1
1
1
0
1
WDT Reset
1
0
0
WDT Wake-up
1
u
u
MCLR Reset during normal operation
1
1
0
MCLR Reset during SLEEP or interrupt wake-up from SLEEP
Legend: x= don’t care, u= unchanged
TABLE 13-5: RESET CONDITION FOR SPECIAL REGISTERS
Program
Counter
STATUS
Register
PCON
Register
Condition
Power-on Reset
000h
000h
0001 1xxx
000u uuuu
0001 0uuu
0000 1uuu
uuu0 0uuu
000x xuuu
uuu1 0uuu
---- --0x
---- --uu
---- --uu
---- --uu
---- --uu
---- --u0
---- --uu
MCLR Reset during normal operation
MCLR Reset during SLEEP
WDT Reset
000h
000h
WDT Wake-up
PC + 1
Brown-out Reset
000h
Interrupt wake-up from SLEEP
PC + 1(1)
Legend: u= unchanged, x= unknown, - = unimplemented bit, read as '0'
Note 1: When the wake-up is due to an interrupt and the GIE bit is set, the PC is loaded with the interrupt vector
(0004h).
REGISTER 13-2: STATUS REGISTER
IRP
RP1
RP0
TO
PD
Z
DC
C
REGISTER 13-3: PCON REGISTER
—
—
—
—
—
—
POR
BOR
DS30605C-page 90
2000 Microchip Technology Inc.
MICROCHIP [ MICROCHIP ]
