Atmel SAM4L-EK Atmel ATSAM4L-EK ATSAM4L-EK Data Sheet

42023E–SAM–07/2013

BGSR

Access Type: Read 

Only

0x00000000

0: Both the Bandgap voltage reference and the Low Power Bandgap voltage reference are currently used by the system.

1: The Bandgap voltage reference is currently used by the system.

2: The Low Power Bandgap voltage reference is currently used by the system.

3: Neither the Bandgap voltage reference nor the Low Power Bandgap voltage reference are used by the system.

0: The Low Power Bandgap voltage reference is not ready, therefore all modules using it as a source will not be able to operate 

correctly.

1: The Low Power Bandgap voltage reference is ready.

0: The Bandgap voltage reference is not ready, therefore all modules using it as a source will not be able to operate correctly.

1: The Bandgap voltage reference is ready.

0: The corresponding Bandgap Buffer is not ready, therefore all modules using it as a source will not be able to operate correctly.

1: The corresponding Bandgap Buffer is ready. Refer to the “Bandgap Buffer Mapping” table in the SCIF Module Configuration 

section for details.

31

30

29

28

27

26

25

24

-

-

-

-

-

-

-

-

23

22

21

20

19

18

17

16

-

-

-

-

VREF

LPBGRDY

BGRDY

15

14

13

12

11

10

9

8

-

-

-

-

-

-

-

-

7

6

5

4

3

2

1

0

BGBUFRDY[7:0]