Atmel Xplained Evaluation Board AT32UC3L0-XPLD AT32UC3L0-XPLD Scheda Tecnica

32099G–06/2011

Writing a value larger than 0x1F to the Startup Time field in the ADC Configuration Register
(ACR.STARTUP) will freeze the ADC, and the Busy Status bit in the Status Register
(SR.BUSY) will never be cleared.
Fix/Workaround
Do not write values larger than 0x1F to ACR.STARTUP.

ADC channels six to eight are non-functional
ADC channels six to eight are non-functional.
Fix/Workaround
None.

VERSION register reads 0x100
The VERSION register reads 0x100 instead of 0x101.
Fix/Workaround
None.

Generic clock sources in sleep modes.
The ACIFB should not use RC32K or CLK_1K as generic clock source if the chip uses sleep
modes.
Fix/Workaround
None.

Negative offset
The static offset of the analog comparator is approximately -50mV
Fix/Workaround
None.

CONFW.WEVSRC and CONFW.WEVEN are not correctly described in the user
interface
CONFW.WEVSRC is only two bits instead of three bits wide. Only values 0, 1, and 2 can be
written to this register. CONFW.WEVEN is in bit position 10 instead of 11.
Fix/Workaround
Only write values 0, 1, and 2 to CONFW.WEVSRC. When reading CONFW.WEVSRC, dis-
regard the third bit. Read/write bit 10 to access CONFW.WEVEN.

VERSION register reads 0x200
The VERSION register reads 0x200 instead of 0x212.
Fix/Workaround
None.

Switch off discharge current when reaching 0V
The discharge current will switch off when reaching MGCFG1.MAX, not when reaching 0V.
Fix/Workaround
None. 

CAT external capacitors are not clamped to ground when CAT is idle
The CAT module does not clamp the external capacitors to ground when it is idle. The
capacitors are left floating, so they could accumulate small amounts of charge.
Fix/Workaround
None.