AT91SAM9G46B-CU View Datasheet(PDF) - Atmel Corporation

Part Name

Description

Manufacturer

AT91SAM9G46B-CU

SMART ARM-based Embedded MPU

Atmel Corporation 

12.5.1 Real-time Timer Mode Register

Name:

RTT_MR

Address: 0xFFFFFD20

Access: Read/Write

31

30

29

28

27

26

25

24

–

–

–

–

–

–

–

–

23

22

21

20

19

18

17

16

–

–

–

–

–

RTTRST

RTTINCIEN

ALMIEN

15

14

13

12

11

10

9

8

RTPRES

7

6

5

4

3

2

1

0

RTPRES

• RTPRES: Real-time Timer Prescaler Value

Defines the number of SLCK periods required to increment the Real-time timer. RTPRES is defined as follows:

RTPRES = 0: The prescaler period is equal to 216.

RTPRES ≠ 0: The prescaler period is equal to RTPRES.

• ALMIEN: Alarm Interrupt Enable

0: The bit ALMS in RTT_SR has no effect on interrupt.

1: The bit ALMS in RTT_SR asserts interrupt.

• RTTINCIEN: Real-time Timer Increment Interrupt Enable

0: The bit RTTINC in RTT_SR has no effect on interrupt.

1: The bit RTTINC in RTT_SR asserts interrupt.

• RTTRST: Real-time Timer Restart

1: Reloads and restarts the clock divider with the new programmed value. This also resets the 32-bit counter.

90 SAM9G46 Series [DATASHEET]

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

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