Atmel ARM-Based Evaluation Kit AT91SAM9N12-EK AT91SAM9N12-EK Datenbogen
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Produktcode
AT91SAM9N12-EK
189
SAM9N12/SAM9CN11/SAM9CN12 [DATASHEET]
11063K–ATARM–05-Nov-13
22.12.3 PMC System Clock Status Register
Name:
PMC_SCSR
Address:
0xFFFFFC08
Access:
Read-only
• PCK: Processor Clock Status
0: The Processor clock is disabled.
1: The Processor clock is enabled.
• DDRCK: DDR Clock Status
0: The DDR clock is disabled.
1: The DDR clock is enabled.
• LCDCK: LCD Clock Status
0: The LCD clock is disabled.
1: The LCD clock is enabled.
• UHP: USB Host Port Clock Status
0: The UHP48M and UHP12M OHCI clocks are disabled.
1: The UHP48M and UHP12M OHCI clocks are enabled.
• UDP: USB Device Port Clock Status
0: The USB Device clock is disabled.
1: The USB Device clock is enabled.
• PCKx: Programmable Clock x Output Status
0: The corresponding Programmable Clock output is disabled.
1: The corresponding Programmable Clock output is enabled.
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