Datasheet

361
XMEGA D3 [DATASHEET]
Atmel-8134N-ATxmega32D3-64D3-128D3-192D3-256D3-384D3_datasheet–03/2014
Problem fix/Workaround
11. PWM is not restarted properly after a fault in cycle-by-cycle mode
When the AWeX fault restore mode is set to cycle-by-cycle, the waveform output will not return to normal
operation at first update after fault condition is no longer present.
Problem fix/Workaround
Do a write to any AWeX I/O register to re-enable the output.
12. BOD will be enabled after any reset
If any reset source goes active, the BOD will be enabled and keep the device in reset if the V
CC
voltage is
below the programmed BOD level. During Power-On Reset, reset will not be released until V
CC
is above the
programmed BOD level even if the BOD is disabled.
Problem fix/Workaround
Do not set the BOD level higher than V
CC
even if the BOD is not used.
13. EEPROM page buffer always written when NVM DATA0 is written
If the EEPROM is memory mapped, writing to NVM DATA0 will corrupt data in the EEPROM page buffer.
Problem fix/Workaround
Before writing to NVM DATA0, for example when doing software CRC or flash page buffer write, check if
EEPROM page buffer active loading flag (EELOAD) is set. Do not write NVM DATA0 when EELOAD is set.
14. Pending full asynchronous pin change interrupts will not wake the device
Any full asynchronous pin-change Interrupt from pin 2, on any port, that is pending when the sleep instruction
is executed, will be ignored until the device is woken from another source or the source triggers again. This
applies when entering all sleep modes where the System Clock is stopped.
Problem fix/Workaround
None.
15. Pin configuration does not affect Analog Comparator output
The Output/Pull and inverted pin configuration does not affect the Analog Comparator output.
Problem fix/Workaround
None for Output/Pull configuration.
For inverted I/O, configure the Analog Comparator to give an inverted result (that is, connect positive input to
the negative AC input and vice versa), or use and external inverter to change polarity of Analog Comparator
output.
Table 34-1. Configure PWM and CWCM according to this table:
PGM CWCM Description
0 0 PGM and CWCM disabled
0 1 PGM enabled
1 0 PGM and CWCM enabled
1 1 PGM enabled