ATAM894 datasheet(14/97 Pages) ATMEL

14 / 97 page

4679D–4BMCU–05/05

ATAM894

Figure 5-9.

Voltage Monitor

5.4.1

Voltage Monitor Control/ Status Register

VM2: Voltage monitor Mode bit 2

VM1: V

oltage monitor Mode bit 1

VM0: V

oltage 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 5-3.

Voltage Monitor Modes

VM2

VM1

VM0

Function

Disable voltage monitor

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

negative slope

Not allowed

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

positive slope

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

slope

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

slope

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

slope

Not allowed

ATAM894 Datasheet(PDF) 14 Page - ATMEL Corporation

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