PIC18F6X2X Datasheet, PDF (259/386 Pages) Microchip Technology – 64/80-Pin High Performance, 64-Kbyte Enhanced FLASH Microcontrollers with A/D

23.2.1 REFERENCE VOLTAGE SET POINT
The internal reference voltage of the LVD module, spec-
ified in electrical specification parameter #D423, may be
used by other internal circuitry (the Programmable
Brown-out Reset). If these circuits are disabled (lower
current consumption), the reference voltage circuit
requires a time to become stable before a low voltage
condition can be reliably detected. This time is invariant
of system clock speed. This start-up time is specified in
electrical specification parameter #36. The low voltage
interrupt flag will not be enabled until a stable reference
voltage is reached. Refer to the waveform in Figure 23-4.
23.2.2 CURRENT CONSUMPTION
When the module is enabled, the LVD comparator and
voltage divider are enabled and will consume static cur-
rent. The voltage divider can be tapped from multiple
places in the resistor array. Total current consumption,
when enabled, is specified in electrical specification
parameter #D022B.
PIC18F6X2X/8X2X
23.3 Operation During SLEEP
When enabled, the LVD circuitry continues to operate
during SLEEP. If the device voltage crosses the trip
point, the LVDIF bit will be set and the device will
wake-up from SLEEP. Device execution will continue
from the interrupt vector address if interrupts have
been globally enabled.
23.4 Effects of a RESET
A device RESET forces all registers to their RESET
state. This forces the LVD module to be turned off.
 2003 Microchip Technology Inc.
Advance Information
DS39612A-page 257