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-VOLTAGEDETECTCONTROLREGISTER(ADDRESS109h)
U-0
—
U-0
—
R-0
R/W-0
R/W-0
LVDL3
R/W-1
LVDL2
R/W-0
LVDL1
R/W-1
LVDL0
IRVST
LVDEN
bit 7
bit 0
bit 7-6 Unimplemented: Read as ‘0’
bit 5
bit 4
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
bit 3-0 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.
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