PIC18F6620 Microchip, PIC18F6620 Datasheet - Page 236

• Manufacturer Part Number: PIC18F6620
• Description: Microcontroller
• Manufacturer: Microchip

PIC18F6520/8520/6620/8620/6720/8720
FIGURE 22-2:
The LVD module has an additional feature that allows
the user to supply the trip voltage to the module from
an external source. This mode is enabled when bits
LVDL3:LVDL0 are set to ‘1111’. In this state, the com-
parator input is multiplexed from the external input pin,
FIGURE 22-3:
DS39609B-page 234
Externally Generated
Trip Point
LVDEN
LOW-VOLTAGE DETECT (LVD) BLOCK DIAGRAM
LOW-VOLTAGE DETECT (LVD) WITH EXTERNAL INPUT BLOCK DIAGRAM
V
DD
LVDIN
V
DD
LVDIN
EN
Internally Generated
Reference Voltage
(Parameter #D423)
V
DD
LVD3:LVD0
LVDIN (Figure 22-3). This gives users flexibility
because it allows them to configure the Low-Voltage
Detect interrupt to occur at any voltage in the valid
operating range.
LVD3:LVD0
VxEN
BODEN
LVDCON
Register
BGAP
LVDCON
Register
 2004 Microchip Technology Inc.
LVDIF
LVDEN
LVD