ATSAM4LS4BA-AU View Datasheet(PDF) - Atmel Corporation

Part Name

Description

Manufacturer

ATSAM4LS4BA-AU

ATSAM ARM-based Flash MCU

Atmel Corporation 

Figure 6-6. Supply Monitor Schematic

ATSAM4L8/L4/L2

VDDANA

DUAL OUTPUT

TRIMMABLE

VOLTAGE

REGULATOR

POR33

BOD33

BOD18

VDDCORE

POR18

VDDANA

GNDANA

6.4.1

6.4.2

6.4.3

6.4.4

Power-on-Reset on VDDANA

POR33 monitors VDDANA. It is always activated and monitors voltage at startup but also during

all the Power Save Mode. If VDDANA goes below the threshold voltage, the entire chip is reset.

Brownout Detector on VDDANA

BOD33 monitors VDDANA. Refer to Section 15. ”Backup System Control Interface (BSCIF)” on

page 308to get more details.

Power-on-Reset on VDDCORE

POR18 monitors the internal VDDCORE. Refer to Section 15. ”Backup System Control Interface

(BSCIF)” on page 308 to get more details.

Brownout Detector on VDDCORE

Once the device is startup, the BOD18 monitors the internal VDDCORE. Refer to Section 15.

”Backup System Control Interface (BSCIF)” on page 308 to get more details.

54

42023GS–SAM–03/2014

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