Microchip Technology MA240029 データシート
PIC24FJ128GA310 FAMILY
DS39996F-page 332
2010-2011 Microchip Technology Inc.
REGISTER 28-1:
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
—
LSIDL
—
—
—
—
—
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
LSIDL:
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
= Internal reference voltage is stable; the High-Voltage Detect logic generates the interrupt flag at the
specified voltage range
0
= Internal reference voltage is unstable; the High-Voltage Detect logic will not generate the interrupt
flag at the specified voltage range and the HLVD interrupt should not be 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 LVDIN pin)
1110
= Trip point 1
1101
= Trip point 2
1100
= Trip point 3
.
.
.
0100
.
.
0100
= Trip point 11
00xx
= Unused
Note 1:
For the actual trip point, see
.