Datasheet

 2013-2015 Microchip Technology Inc. DS40001723D-page 61
PIC12(L)F1571/2
6.2.1 BOR IS ALWAYS ON
When the BORENx bits of the Configuration Words are
programmed to ‘11’, the BOR is always on. The device
start-up will be delayed until the BOR is ready and VDD
is higher than the BOR threshold.
BOR protection is active during Sleep. The BOR does
not delay wake-up from Sleep.
6.2.2 BOR IS OFF IN SLEEP
When the BORENx bits of the Configuration Words are
programmed to ‘10’, the BOR is on, except in Sleep.
The device start-up will be delayed until the BOR is
ready and V
DD is higher than the BOR threshold.
BOR protection is not active during Sleep. The device
wake-up will be delayed until the BOR is ready.
6.2.3 BOR CONTROLLED BY SOFTWARE
When the BORENx bits of the Configuration Words
are programmed to ‘01’, the BOR is controlled by the
SBOREN bit of the BORCON register. The device
start-up is not delayed by the BOR ready condition or
the V
DD level.
BOR protection begins as soon as the BOR circuit is
ready. The status of the BOR circuit is reflected in the
BORRDY bit of the BORCON register.
BOR protection is unchanged by Sleep.
FIGURE 6-2: BROWN-OUT SITUATIONS
TPWRT
(1)
VBOR
V
DD
Internal
Reset
VBOR
V
DD
Internal
Reset
TPWRT
(1)
< TPWRT
TPWRT
(1)
VBOR
V
DD
Internal
Reset
Note 1: TPWRT delay only if PWRTE bit is programmed to ‘0’.