Atmel ARM-Based Evaluation Kit AT91SAM9N12-EK AT91SAM9N12-EK Data Sheet
Product codes
AT91SAM9N12-EK
188
SAM9N12/SAM9CN11/SAM9CN12 [DATASHEET]
11063K–ATARM–05-Nov-13
22.12.2 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.
• LCDCK: LCD Clock Disable
0: No effect.
1: Disables the LCD 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
–
–
–
–
–
–
PCK1
PCK0
7
6
5
4
3
2
1
0
UDP
UHP
–
–
LCDCK
DDRCK
–
PCK