AT91SAM9G46B-CU View Datasheet(PDF) - Atmel Corporation

Part Name

Description

Manufacturer

AT91SAM9G46B-CU

SMART ARM-based Embedded MPU

Atmel Corporation 

11.5.3 Reset Controller Mode Register

Name:

RSTC_MR

Address: 0xFFFFFD08

Access: Read/Write

31

30

29

28

27

26

25

24

KEY

23

22

21

20

19

18

17

16

–

–

–

–

–

–

–

–

15

14

13

12

11

10

9

8

–

–

–

–

ERSTL

7

6

5

4

3

2

1

0

–

–

URSTIEN

–

–

–

URSTEN

• URSTEN: User Reset Enable

0: The detection of a low level on the pin NRST does not generate a User Reset.

1: The detection of a low level on the pin NRST triggers a User Reset.

• URSTIEN: User Reset Interrupt Enable

0: USRTS bit in RSTC_SR at 1 has no effect on rstc_irq.

1: USRTS bit in RSTC_SR at 1 asserts rstc_irq if URSTEN = 0.

• ERSTL: External Reset Length

This field defines the external reset length. The external reset is asserted during a time of 2(ERSTL+1) Slow Clock cycles.

This allows assertion duration to be programmed between 60 µs and 2 seconds.

• KEY: Password

Should be written at value 0xA5. Writing any other value in this field aborts the write operation.

86 SAM9G46 Series [DATASHEET]

Atmel-11028G-ATARM-SAM9G46-Datasheet_08-Dec-15

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