at91sam9g20-cu ATMEL Corporation, at91sam9g20-cu Datasheet - Page 297

• Manufacturer Part Number: at91sam9g20-cu
• Description: At91 Arm Thumb Microcontrollers
• Manufacturer: ATMEL Corporation

26.9.2
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.
• UDP: USB Device Port Clock Disable
0 = No effect.
1 = Disables the 48 MHz clock of the USB Device Port.
• PCKx: Programmable Clock x Output Disable
0 = No effect.
1 = Disables the corresponding Programmable Clock output.
6384B–ATARM–15-Dec-08
UDP
31
23
15
–
7
-
-
PMC System Clock Disable Register
UHP
30
22
14
–
6
-
-
29
21
13
–
5
–
-
-
28
20
12
–
4
–
-
-
27
19
11
–
3
–
-
-
AT91SAM9G20 Preliminary
26
18
10
–
–
2
-
-
PCK1
25
17
–
9
1
-
-
PCK0
PCK
24
16
–
8
0
-
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