Atmel Evaluation Kit for AT32uC3A0512, 32-Bit AVR Microcontroller Atmel ATEVK1105 ATEVK1105 Data Sheet

Note:

1. Values in the Version Register vary with the version of the IP block implementation.

CR

Write-only

 0x00000000

0 = No effect.
1 = A frame beginning with a START bit is transmitted according to the features defined in the mode register.

TWI User Interface 

0x00

Control Register

CR

Write-only

N / A

0x04

Master Mode Register

MMR

Read-write

0x00000000

0x08

Slave Mode Register

SMR

Read-write

0x00000000

0x0C

Internal Address Register

IADR

Read-write

0x00000000

0x10

Clock Waveform Generator Register

CWGR

Read-write

0x00000000

0x20

Status Register

SR

Read-only

0x0000F009

0x24

Interrupt Enable Register

IER

Write-only

N / A

0x28

Interrupt Disable Register

IDR

Write-only

N / A

0x2C

Interrupt Mask Register

IMR

Read-only

0x00000000

0x30

Receive Holding Register

RHR

Read-only

0x00000000

0x34

Transmit Holding Register

THR

Write-only

0x00000000

0x38 - 0xF8

Reserved

–

–

–

0xFC

Version Register

TWI_VER

Read-only

0x00000000

(1)

0x38 - 0xFC

Reserved

–

–

–

31

30

29

28

27

26

25

24

–

–

–

–

–

–

–

–

23

22

21

20

19

18

17

16

–

–

–

–

–

–

–

–

15

14

13

12

11

10

9

8

–

–

–

–

–

–

–

–

7

6

5

4

3

2

1

0

SWRST

–

SVDIS

SVEN

MSDIS

MSEN

STOP

START

32058K AVR32-01/12