Datasheet

PIC16F7X7

DS30498C-page 176  2004 Microchip Technology Inc.

15.9 Control Register

The Low-Voltage Detect Control register controls the

operation of the Low-Voltage Detect circuitry.

U-0 U-0 R-0 R/W-0 R/W-0 R/W-1 R/W-0 R/W-1

— — IRVST LVDEN LVDL3 LVDL2 LVDL1 LVDL0

bit 7 bit 0

bit 7-6 Unimplemented: Read as ‘0’

bit 5 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

bit 4 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 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