PIC24FJ128GA310 datasheet(332/406 Pages) MICROCHIP

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PIC24FJ128GA310 FAMILY

DS39996F-page 332

 2010-2011 Microchip Technology Inc.

HLVDCON: HIGH/LOW-VOLTAGE DETECT CONTROL REGISTER

R/W-0

U-0

R/W-0

U-0

HLVDEN

—LSIDL

—

bit 15

bit 8

R/W-0

U-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

= HLVD is enabled

= HLVD is disabled

bit 14

Unimplemented:

Read as ‘0’

bit 13

LSIDL:

HLVD Stop in Idle Mode bit

= Discontinue module operation when device enters Idle mode

= Continue module operation in Idle mode

bit 12-8

Unimplemented:

Read as ‘0’

bit 7

VDIR:

Voltage Change Direction Select bit

= Event occurs when voltage equals or exceeds trip point (HLVDL<3:0>)

= Event occurs when voltage equals or falls below trip point (HLVDL<3:0>)

bit 6

BGVST:

Band Gap Voltage Stable Flag bit

= Indicates that the band gap voltage is stable

= Indicates that the band gap voltage is unstable

bit 5

IRVST:

Internal Reference Voltage Stable Flag bit

= Internal reference voltage is stable; the High-Voltage Detect logic generates the interrupt flag at the

specified voltage range

= 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(1)

1101

= Trip point 2(1)

1100

= Trip point 3(1)

0100

= Trip point 11(1)

00xx

= Unused

Note 1:

For the actual trip point, see Section 32.0 “Electrical Characteristics”.

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