PIC18F1220 MICROCHIP [Microchip Technology], PIC18F1220 Datasheet - Page 168

• Manufacturer Part Number: PIC18F1220
• Description: 18/20/28-Pin High-Performance, Enhanced Flash Microcontrollers with 10-bit A/D and nanoWatt Technology
• Manufacturer: MICROCHIP [Microchip Technology]

PIC18F1220/1320
FIGURE 18-2:
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 18-3:
DS39605C-page 166
Externally Generated
Trip Point
LOW-VOLTAGE DETECT (LVD) BLOCK DIAGRAM
LOW-VOLTAGE DETECT (LVD) WITH EXTERNAL INPUT BLOCK DIAGRAM
LVDEN
V
DD
LVDIN
V
DD
LVDIN
EN
Internally Generated
Reference Voltage
1.2V
V
DD
LVDIN (Figure 18-3). 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.
VxEN
BODEN
LVD Control
Register
BGAP
LVD Control
Register
 2004 Microchip Technology Inc.
LVDIF
LVDEN
LVD