ATAM862 datasheet(25/110 Pages) ATMEL

25 / 110 page

4554E–4BMCU–05/06

ATAM862-3

Figure 18-1. Voltage Monitor

18.0.1

Voltage Monitor Control/Status Register

Primary register address: "F"hex

VM2:

Voltage monitor Mode bit 2

VM1:

Voltage monitor Mode bit 1

VM0:

Voltage monitor Mode bit 0

Table 18-1.

Voltage Monitor Modes

VIM

Voltage Interrupt Mask bit

VIM = 0, voltage monitor interrupt is enabled

VIM = 1, voltage monitor interrupt is disabled

VMS

Voltage Monitor Status bit

VMS = 0, the voltage at the comparator input is below V

Ref

VMS = 1, the voltage at the comparator input is above V

Ref

VM2

Voltage monitor

VM1

VM0

VIM

VMS

res

OUT

BP41/

VMI

INT7

VMC :

VMST :

Bit 3

Bit 2

Bit 1

Bit 0

VMC: Write

VM2

VM1

VM0

VIM

Reset value: 1111b

VMST: Read

–

Reserved

VMS

Reset value: xx11b

VM2

VM1

VM0

Function

Disable voltage monitor

110

External (VIM input), internal reference threshold (1.3 V), interrupt with

negative slope

101

Not allowed

100

External (VMI input), internal reference threshold (1.3 V), interrupt with

positive slope

Internal (supply voltage), high threshold (3.0 V), interrupt with negative slope

010

Internal (supply voltage), middle threshold (2.6 V), interrupt with negative

slope

Internal (supply voltage), low threshold (2.2 V), interrupt with negative slope

000

Not allowed

ATAM862 Datasheet(PDF) 25 Page - ATMEL Corporation

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