AT91SAM7S64C-AU 查看數據表（PDF） - Atmel Corporation

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AT91SAM7S64C-AU

AT91SAM ARM-based Flash MCU

Atmel Corporation 

25.9.2 PMC System Clock Disable Register

Register Name:

PMC_SCDR

Access Type:

Write-only

31

30

29

28

–

–

–

–

23

22

21

20

–

–

–

–

15

14

13

12

–

–

–

–

7

6

5

4

UDP

–

–

–

27

26

–

–

19

18

–

–

11

10

–

PCK2

3

2

–

–

• PCK: Processor Clock Disable

0 = No effect.

1 = Disables the Processor clock. This is used to enter the processor in Idle Mode.

• UDP: USB Device Port Clock Disable

0 = No effect.

1 = Disables the 48 MHz clock of the USB Device Port.

(Does not pertain to SAM7S32/16.)

• PCKx: Programmable Clock x Output Disable

0 = No effect.

1 = Disables the corresponding Programmable Clock output.

25

–

17

–

9

PCK1

1

–

24

–

16

–

8

PCK0

0

PCK

SAM7S Series [DATASHEET]

6175M–ATARM–26-Oct-12

202

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