at91sam9g20-cu ATMEL Corporation, at91sam9g20-cu Datasheet - Page 296

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

26.9.1
Register Name:PMC_SCER
Access Type:Write-only
• UHP: USB Host Port Clock Enable
0 = No effect.
1 = Enables the 12 and 48 MHz clock of the USB Host Port.
• UDP: USB Device Port Clock Enable
0 = No effect.
1 = Enables the 48 MHz clock of the USB Device Port.
• PCKx: Programmable Clock x Output Enable
0 = No effect.
1 = Enables the corresponding Programmable Clock output.
296
UDP
31
23
15
–
7
-
-
AT91SAM9G20 Preliminary
PMC System Clock Enable Register
UHP
30
22
14
–
6
-
-
29
21
13
–
5
–
-
-
28
20
12
–
4
–
-
-
27
19
11
–
–
3
-
-
26
18
10
–
2
–
-
-
PCK1
25
17
–
9
1
-
-
6384B–ATARM–15-Dec-08
PCK0
24
16
–
8
0
-
-