Datasheet

SAM9263 [DATASHEET]
Atmel-6249N-ATARM-SAM9263-Datasheet_14-Mar-16
360
27.9.12 PMC Programmable Clock Register
Name: PMC_PCKx
Address: 0xFFFFFC40
Access: Read/Write
• CSS: Master Clock Selection
• PRES: Programmable Clock Prescaler
31 30 29 28 27 26 25 24
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23 22 21 20 19 18 17 16
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15 14 13 12 11 10 9 8
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76543210
– – – PRES CSS
CSS Clock Source Selection
0 0 Slow Clock is selected.
0 1 Main Clock is selected.
1 0 PLL A Clock is selected.
1 1 PLL B Clock is selected.
PRES Programmable Clock
0 0 0 Selected clock
0 0 1 Selected clock divided by 2
0 1 0 Selected clock divided by 4
0 1 1 Selected clock divided by 8
1 0 0 Selected clock divided by 16
1 0 1 Selected clock divided by 32
1 1 0 Selected clock divided by 64
111Reserved