SAM7S256_14 Datasheet, PDF (201/775 Pages) ATMEL Corporation – ARM-based Flash MCU

25.9.1 PMC System Clock Enable Register
Register Name:
PMC_SCER
Access Type:
Write-only
31
30
29
28
27
–
–
–
–
–
23
22
21
20
19
–
–
–
–
–
15
14
13
12
11
–
–
–
–
–
7
6
5
4
3
UDP
–
–
–
–
• PCK: Processor Clock Enable
0 = No effect.
1 = Enables the Processor clock.
• UDP: USB Device Port Clock Enable
0 = No effect.
1 = Enables the 48 MHz clock of the USB Device Port.
(Does not pertain to SAM7S32/16.)
• PCKx: Programmable Clock x Output Enable
0 = No effect.
1 = Enables the corresponding Programmable Clock output.
26
–
18
–
10
PCK2
2
–
25
–
17
–
9
PCK1
1
–
24
–
16
–
8
PCK0
0
PCK
SAM7S Series [DATASHEET]
6175M–ATARM–26-Oct-12
201