PIC16F636T-I Datasheet, PDF (33/234 Pages) Microchip Technology – 8/14-Pin, Flash-Based 8-Bit CMOS Microcontrollers with nanoWatt Technology

PIC12F635/PIC16F636/639
2.2.2.6 PCON Register
The Power Control (PCON) register (see Table 12-3)
contains flag bits to differentiate between a:
• Power-on Reset (POR)
• Wake-up Reset (WUR)
• Brown-out Reset (BOR)
• Watchdog Timer Reset (WDT)
• External MCLR Reset
The PCON register also controls the Ultra Low-Power
Wake-up and software enable of the BOR.
The PCON register bits are shown in Register 2-6.
REGISTER 2-6: PCON: POWER CONTROL REGISTER
U-0
—
bit 7
U-0
R/W-0
R/W-1
R/W-x
U-0
R/W-0
R/W-x
—
ULPWUE SBOREN⁽¹⁾
WUR
—
POR
BOR
bit 0
Legend:
R = Readable bit
-n = Value at POR
W = Writable bit
‘1’ = Bit is set
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
x = Bit is unknown
bit 7-6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
Unimplemented: Read as ‘0’
ULPWUE: Ultra Low-Power Wake-up Enable bit
1 = Ultra low-power wake-up enabled
0 = Ultra low-power wake-up disabled
SBOREN: Software BOR Enable bit⁽¹⁾
1 = BOR enabled
0 = BOR disabled
WUR: Wake-up Reset Status bit
1 = No Wake-up Reset occurred
0 = A Wake-up Reset occurred (must be set in software after a Power-on Reset occurs)
Unimplemented: Read as ‘0’
POR: Power-on Reset Status bit
1 = No Power-on Reset occurred
0 = A Power-on Reset occurred (must be set in software after a Power-on Reset occurs)
BOR: Brown-out Reset Status bit
1 = No Brown-out Reset occurred
0 = A Brown-out Reset occurred (must be set in software after a Brown-out Reset occurs)
Note 1: BOREN<1:0> = 01 in the Configuration Word register for this bit to control the BOR.
© 2007 Microchip Technology Inc.
DS41232D-page 31