Datasheet

PIC24F16KL402 FAMILY
DS30001037C-page 174  2011-2013 Microchip Technology Inc.
REGISTER 22-1: 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 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 = Discontinues module operation when the device enters Idle mode
0 = Continues module operation in Idle mode
bit 12-8 Unimplemented: Read as ‘0’
bit 7 VDIR: Voltage Change Direction Select bit
1 = Event occurs when the voltage equals or exceeds the trip point (HLVDL<3:0>)
0 = Event occurs when the voltage equals or falls below the 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
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 14
(1)
1101 = Trip Point 13
(1)
1100 = Trip Point 12
(1)
.
.
.
0000 = Trip Point 0
(1)
Note 1: For the actual trip point, see Section 26.0 “Electrical Characteristics”.