PIC16F737-I Datasheet, PDF (178/276 Pages) Microchip Technology – 28/40/44-Pin, 8-Bit CMOS Flash Microcontrollers with 10-Bit A/D and nanoWatt Technology

PIC16F7X7
15.9 Control Register
The Low-Voltage Detect Control register controls the
operation of the Low-Voltage Detect circuitry.
REGISTER 15-3:
LVDCON: LOW-VOLTAGE DETECT CONTROL REGISTER (ADDRESS 109h)
U-0
U-0
R-0
R/W-0
R/W-0
R/W-1 R/W-0 R/W-1
—
—
IRVST LVDEN LVDL3 LVDL2 LVDL1 LVDL0
bit 7
bit 0
bit 7-6
bit 5
bit 4
bit 3-0
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
voltage range
0 = Indicates that the Low-Voltage Detect logic will not generate the interrupt flag at the
specified voltage range and the LVD interrupt should not be enabled
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
Note: See Table 18-3 in Section 18.0 “Electrical Characteristics” for the specifications.
Legend:
R = Readable bit
-n = Value at POR
W = Writable bit
‘1’ = Bit is set
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared x = Bit is unknown
DS30498C-page 176
 2004 Microchip Technology Inc.