Atmel Xplained Evaluation Board AT32UC3A3-XPLD AT32UC3A3-XPLD データシート

Atmel

製品コード

AT32UC3A3-XPLD

843

32072H–AVR32–10/2012

AT32UC3A3

31.7.1

Control Register

Name: CR

Access Type: Write-only

Offset: 0x000

Reset Value:

0x00000000

• SWRST: Software Reset

Writing a one to this bit will reset the MCI interface.

Writing a zero to this bit has no effect.

• IOWAITDIS: SDIO Read Wait Disable

Writing a one to this bit will disable the SDIO Read Wait Operation.

Writing a zero to this bit has no effect.

• IOWAITEN: SDIO Read Wait Enable

Writing a one to this bit will enable the SDIO Read Wait Operation.

Writing a zero to this bit has no effect.

• PWSDIS: Power Save Mode Disable

Writing a one to this bit will disable the Power Saving Mode.

Writing a zero to this bit has no effect.

• PWSEN: Power Save Mode Enable

Writing a one to this bit and a zero to PWSDIS will enable the Power Saving Mode.

Writing a one to this bit and a one to PWSDIS will disable the Power Saving Mode.

Writing a zero to this bit has no effect.

Warning: Before enabling this mode, the user must write a value different from 0 to the PWSDIV field.

• MCIDIS: Multi-Media Interface Disable

Writing a one to this bit will disable the Multi-Media Interface.

Writing a zero to this bit has no effect.

• MCIEN: Multi-Media Interface Enable

Writing a one to this bit and a zero to MCIDIS will enable the Multi-Media Interface.

Writing a one to this bit and a one to MCIDIS will disable the Multi-Media Interface.

Writing a zero to this bit has no effect.

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

-

IOWAITDIS

IOWAITEN

PWSDIS

PWSEN

MCIDIS

MCIEN