AT32UC3L064-D3HES ATMEL [ATMEL Corporation], AT32UC3L064-D3HES Datasheet - Page 809
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AT32UC3L064-D3HES
Manufacturer Part Number
AT32UC3L064-D3HES
Description
Manufacturer
ATMEL [ATMEL Corporation]
Datasheet
1.AT32UC3L064-D3HES.pdf
(830 pages)
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32099D–06/2010
8. Generic clock sources are kept running in sleep modes
9. DFLL clock is unstable with a fast reference clock
10. DFLLIF indicates coarse lock too early
11. DFLLIF dithering does not work
12. SCIF VERSION register reads 0x100
13. DFLLVERSION register reads 0x200
14. RCCRVERSION register reads 0x100
15. OSC32VERSION register reads 0x100
16. VREGVERSION register reads 0x100
17. RC120MVERSION register reads 0x100
If a clock is used as a source for a generic clock when going to a sleep mode where clock
sources are stopped, the source of the generic clock will be kept running. Please refer to the
Power Manager chapter for details about sleep modes.
Fix/Workaround
Disable generic clocks before going to sleep modes where clock sources are stopped to
save power.
The DFLL clock can be unstable when a fast clock is used as reference clock in closed loop
mode.
Fix/Workaround
Use the 32 KHz crystal oscillator clock or a clock with similar frequency as DFLLIF reference
clock.
The DFLLIF might indicate coarse lock too early, the DFLL will lose coarse lock and regain it
later.
Fix/Workaround
Use max step size (DFLL0MAXSTEP.MAXSTEP) of 4 or higher.
The DFLLIF dithering does not work.
Fix/Workaround
None.
The VERSION register reads 0x100 instead of 0x102.
Fix/Workaround
None.
The DFLLVERSION register reads 0x200 instead of 0x201.
Fix/Workaround
None.
The RCCRVERSION register reads 0x100 instead of 0x101.
Fix/Workaround
None.
The OSC32VERSION register reads 0x100 instead of 0x101.
Fix/Workaround
None.
The VREGVERSION register reads 0x100 instead of 0x101.
Fix/Workaround
None.
The RC120MVERSION register reads 0x100 instead of 0x101.
Fix/Workaround
AT32UC3L016/32/64
809
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