SAM3A8C Atmel Corporation, SAM3A8C Datasheet - Page 570
SAM3A8C
Manufacturer Part Number
SAM3A8C
Description
Manufacturer
Atmel Corporation
- Current page: 570 of 1465
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28.2.15.13
Name:
Address:
Access:
This register can only be written if the WPEN bit is cleared in
• CSS: Master Clock Source Selection
• PRES: Programmable Clock Prescaler
570
570
31
23
15
–
–
–
7
–
Value
Value
0
1
2
3
4
0
1
2
3
4
5
6
SAM3X/A
SAM3X/A
PMC Programmable Clock Register
PMC_PCKx
0x400E0640
Read-write
Name
SLOW_CLK
MAIN_CLK
PLLA_CLK
UPLL_CLK
MCK
Name
CLK
CLK_2
CLK_4
CLK_8
CLK_16
CLK_32
CLK_64
30
22
14
–
–
–
6
PRES
29
21
13
–
–
–
5
Description
Slow Clock is selected
Main Clock is selected
PLLA Clock is selected
UPLL Clock is selected
Master Clock is selected
Description
Selected clock
Selected clock divided by 2
Selected clock divided by 4
Selected clock divided by 8
Selected clock divided by 16
Selected clock divided by 32
Selected clock divided by 64
28
20
12
–
–
–
4
“PMC Write Protect Mode Register”
27
19
11
–
–
–
–
3
26
18
10
–
–
–
2
CSS
.
25
17
–
–
–
9
1
11057A–ATARM–17-Feb-12
11057A–ATARM–17-Feb-12
24
16
–
–
8
–
0
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