ATAR080 datasheet(12/68 Pages) ATMEL

12 / 68 page

ATAR080

4675D–4BMCU–12/04

Figure 11. Voltage Monitor

Voltage Monitor Control/

Status Register

VM2: Voltage monitor Mode bit 2

VM1: Voltage monitor Mode bit 1

VM0: Voltage monitor Mode bit 0

VM2

Voltage monitor

VM1

VM0

VIM

VMS

res

OUT

BP41/

VMI

INT7

VMC

VMST

Primary register address: ’F’hex

Bit 3

Bit 2

Bit 1

Bit 0

VMC: Write

VM2

VM1

VM0

VIM

Reset value: 1111b

VMST: Read

–

reserved

VMS

Reset value: xx11b

Table 3. Voltage Monitor Modes

VM2

VM1

VM0

Function

Disable voltage monitor

110

External (VIM input), internal reference threshold (1.25 V),

interrupt with negative slope

Not allowed

100

External (VMI input), internal reference threshold (1.25 V),

interrupt with positive slope

011

Internal (supply voltage), high threshold (2.95 V), interrupt with

negative slope

010

Internal (supply voltage), middle threshold (2.55 V), interrupt with

negative slope

001

Internal (supply voltage), low threshold (2.15 V), interrupt with

negative slope

Not allowed

ATAR080 데이터시트(PDF) 12 Page - ATMEL Corporation

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