PIC16F747 Microchip Technology Inc., PIC16F747 Datasheet - Page 178

• Manufacturer Part Number: PIC16F747
• Description: 28/40/44-pin, 8-bit Cmos Flash Microcontrollers With 10-bit A/d And Nanowatt Technology
• Manufacturer: Microchip Technology Inc.

PIC16F7X7
15.9
The Low-Voltage Detect Control register controls the
operation of the Low-Voltage Detect circuitry.
REGISTER 15-3:
DS30498C-page 176
Control Register
bit 7-6
bit 5
bit 4
bit 3-0
LVDCON: LOW-VOLTAGE DETECT CONTROL REGISTER (ADDRESS 109h)
bit 7
Unimplemented: Read as ‘0’
IRVST: Internal Reference Voltage Stable Flag bit
1 = Indicates that the Low-Voltage Detect logic will generate the interrupt flag at the specified
0 = Indicates that the Low-Voltage Detect logic will not generate the interrupt flag at the
LVDEN: Low-Voltage Detect Power Enable bit
1 = Enables LVD, powers up LVD circuit
0 = Disables LVD, powers down LVD circuit
LVDL3:LVDL0: Voltage Detection Limit bits
1111 = External analog input is used (input comes from the LVDIN pin)
1110 = Maximum setting
.
.
.
0001 = Minimum setting
Legend:
R = Readable bit
-n = Value at POR
Note:
U-0
—
voltage range
specified voltage range and the LVD interrupt should not be enabled
See Table 18-3 in Section 18.0 “Electrical Characteristics” for the specifications.
U-0
—
IRVST
R-0
W = Writable bit
‘1’ = Bit is set
LVDEN
R/W-0
LVDL3
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
R/W-0
LVDL2
R/W-1
 2004 Microchip Technology Inc.
x = Bit is unknown
LVDL1
R/W-0
LVDL0
R/W-1
bit 0