Datasheet

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
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23 22 21 20 19 18 17 16
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15 14 13 12 11 10 9 8
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76543210
SWRST - IOWAITDIS IOWAITEN PWSDIS PWSEN MCIDIS MCIEN