Datasheet

189
SAM9X25 [DATASHEET]
11054E–ATARM–10-Mar-2014
22.13.2 PMC System Clock Disable Register
Name: PMC_SCDR
Address: 0xFFFFFC04
Access: Write-only
• PCK: Processor Clock Disable
0 = No effect.
1 = Disables the Processor clock. This is used to enter the processor in Idle Mode.
• DDRCK: DDR Clock Disable
0 = No effect.
1 = Disables the DDR clock.
• SMDCK: SMD Clock Disable
0 = No effect.
1 = Disables the soft modem clock.
• UHP: USB Host OHCI Clock Disable
0 = No effect.
1 = Disables the UHP48M and UHP12M OHCI clocks.
• UDP: USB Device Clock Enable
0 = No effect.
1 = Disables the USB Device clock.
• PCKx: Programmable Clock x Output Disable
0 = No effect.
1 = Disables the corresponding Programmable Clock output.
31 30 29 28 27 26 25 24
––––––––
23 22 21 20 19 18 17 16
––––––––
15 14 13 12 11 10 9 8
––––––PCK1PCK0
76543210
UDP UHP – SMDCK – DDRCK – PCK