Atmel SAM4S-EK2 Atmel ATSAM4S-EK2 ATSAM4S-EK2 Data Sheet

Product codes
ATSAM4S-EK2
Page of 1125
 472
SAM4S [DATASHEET]
11100E–ATARM–24-Jul-13
28.2.16.1PMC System Clock Enable Register
Name:
PMC_SCER
Address:
0x400E0400
Access:
Write-only 
This register can only be written if the WPEN bit is cleared in 
.
• UDP: USB Device Port Clock Enable
0 = No effect.
1 = Enables the 48 MHz clock (UDPCK) of the USB Device Port.
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
PCK2
PCK1
PCK0
7
6
5
4
3
2
1
0
UDP