Atmel Xplained Evaluation Board AT32UC3A3-XPLD AT32UC3A3-XPLD Data Sheet
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Product codes
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