Manual

367
6264A–CAP–21-May-07
AT91CAP9S500A/AT91CAP9S250A
29.9.2 PMC System Clock Disable Register
Register Name: PMC_SCDR
Access Type: Write-only
• PCK: Processor Clock Disable
0 = No effect.
1 = Disables the Processor clock. This is used to enter the processor in Idle Mode.
• UHP: USB Host Port Clock Disable
0 = No effect.
1 = Disables the 12 and 48 MHz clock of the USB Host Port.
• PCKx: Programmable Clock x Output Disable
0 = No effect.
1 = Disables the corresponding programmable clock output.
31 30 29 28 27 26 25 24
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23 22 21 20 19 18 17 16
––––––––
15 14 13 12 11 10 9 8
––––PCK3PCK2PCK1PCK0
76543210
–UHP–––––PCK