Microchip Technology MA240017 Data Sheet
PIC24F16KA102 FAMILY
DS39927C-page 172
2008-2011 Microchip Technology Inc.
REGISTER 21-1:
HLVDCON: HIGH/LOW-VOLTAGE DETECT CONTROL REGISTER
R/W-0
U-0
R/W-0
U-0
U-0
U-0
U-0
U-0
HLVDEN
—
HLSIDL
—
—
—
—
—
bit 15
bit 8
R/W-0
R/W-0
R/W-0
U-0
R/W-0
R/W-0
R/W-0
R/W-0
VDIR
BGVST
IRVST
—
HLVDL3
HLVDL2
HLVDL1
HLVDL0
bit 7
bit 0
Legend:
R = Readable bit
R = Readable bit
W = Writable bit
U = Unimplemented bit, read as ‘0’
-n = Value at POR
‘1’ = Bit is set
‘0’ = Bit is cleared
x = Bit is unknown
bit 15
HLVDEN:
High/Low-Voltage Detect Power Enable bit
1
= HLVD is enabled
0
= HLVD is disabled
bit 14
Unimplemented:
Read as ‘0’
bit 13
HLSIDL:
HLVD Stop in Idle Mode bit
1
= Discontinue module operation when device enters Idle mode
0
= Continue module operation in Idle mode
bit 12-8
Unimplemented:
Read as ‘0’
bit 7
VDIR:
Voltage Change Direction Select bit
1
= Event occurs when voltage equals or exceeds trip point (HLVDL<3:0>)
0
= Event occurs when voltage equals or falls below trip point (HLVDL<3:0>)
bit 6
BGVST:
Band Gap Voltage Stable Flag bit
1
= Indicates that the band gap voltage is stable
0
= Indicates that the band gap voltage is unstable
bit 5
IRVST:
Internal Reference Voltage Stable Flag bit
1
= Indicates that the internal reference voltage is stable and the High-Voltage Detect logic generates
the interrupt flag at the specified voltage range
0
= Indicates that the internal reference voltage is unstable and the High-Voltage Detect logic will not
generate the interrupt flag at the specified voltage range, and the HLVD interrupt should not be
enabled
enabled
bit 4
Unimplemented:
Read as ‘0’
bit 3-0
HLVDL<3:0>:
High/Low-Voltage Detection Limit bits
1111
= External analog input is used (input comes from the HLVDIN pin)
1110
= Trip Point 1
(
)
1101
= Trip Point 2
(
)
1100
= Trip Point 3
(
)
.
.
.
0000
.
.
0000
= Trip Point 15
)
Note 1:
For actual trip point, refer to
.