AS3701 datasheet(73/110 Pages) AMSOSRAM

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[v1-11] 2016-Dec-14

AS3701 − Register Description

Figure 83:

Battery_voltage_monitor

Note(s):

1. If VBAT falls below ResVoltFall only an interrupt is generated (if enabled) and the uProcessor can shut down the system.

Addr:32h

Battery_voltage_monitor

Bit

Bit Name

Default

Access

Bit Description

7FastResEn

0 : Vresetfall debounce time = 3msec

1 : Vresetfall debounce time = 64

μsec

6SupResEn

RW_SM

0 : A reset is generated if VSUP falls below 2.7V (1)

1 : A reset is generated if VSUP falls below ResVoltFall

5:3

ResVoltFall

b000

RW_SM

This value determines the reset level ResVoltFall for

falling VBAT.

It is recommended to set this value at least 200mV lower

than ResVoltRise

0 : 2.7V

1 : 2.9V

2 : 3.1V

3 : 3.2V

4 : 3.3V

5 : 3.4V

6 : 3.5V

7 : 3.6V

2:0

ResVoltRise

b001

This value determines the reset level ResVoltRise for

rising VBAT.

It is recommended to set this value at least 200mV higher

than ResVoltFall

0 : 2.7V

1 : 2.9V

2 : 3.1V

3 : 3.2V

4 : 3.3V

5 : 3.4V

6 : 3.5V

7 : 3.6V

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