Atmel SAM4S-EK2 Atmel ATSAM4S-EK2 ATSAM4S-EK2 Data Sheet

 659

SAM4S [DATASHEET]

11100E–ATARM–24-Jul-13

Name: TWI_MMR

0x40018004 (0), 0x4001C004 (1)

Access: Read-write

0x00000000

0 = Master write direction. 

1 = Master read direction.

The device address is used to access slave devices in read or write mode. Those bits are only used in Master mode.

31

30

29

28

27

26

25

24

–

–

–

–

–

–

–

–

23

22

21

20

19

18

17

16

–

DADR

15

14

13

12

11

10

9

8

–

–

–

MREAD

–

–

IADRSZ

7

6

5

4

3

2

1

0

–

–

–

–

–

–

–

–

0

NONE

No internal device address

1

1_BYTE

One-byte internal device address

2

2_BYTE

Two-byte internal device address

3

3_BYTE

Three-byte internal device address