at91sam9263 ATMEL Corporation, at91sam9263 Datasheet - Page 374

• Manufacturer Part Number: at91sam9263
• Description: At91 Arm Thumb Microcontrollers
• Manufacturer: ATMEL Corporation

27.9.12
Register Name:
Access Type:
• CSS: Master Clock Selection
• PRES: Programmable Clock Prescaler
374
31
23
15
–
–
–
7
–
AT91SAM9263 Preliminary
PMC Programmable Clock Register
0
0
0
0
1
1
1
1
0
0
1
1
30
22
14
PMC_PCKx
Read/Write
–
–
–
6
–
CSS
29
21
13
–
–
–
5
–
PRES
0
0
1
1
0
0
1
1
0
1
0
1
28
20
12
–
–
–
4
Clock Source Selection
Slow Clock is selected
Main Clock is selected
PLL A Clock is selected
PLL B Clock is selected
PRES
27
19
11
–
–
–
3
0
1
0
1
0
1
0
1
26
18
10
–
–
–
2
Programmable Clock
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
Reserved
25
17
–
–
–
9
1
6249D–ATARM–20-Dec-07
CSS
24
16
–
–
8
–
0