
TC1796
Peripheral Units (Vol. 2 of 2)
Analog-to-Digital Converter (ADC)
User’s Manual
25-13
V2.0, 2007-07
ADC, V2.0
conversion request within register EXCRP with the highest channel number. Starting a
conversion causes the conversion request bit in register EXCRP to be cleared by the
arbiter. If a currently running “External Event” initiated conversion is cancelled, the
arbiter sets the corresponding conversion request bit in register EXCRP for this channel.
If all pending conversion requests are processed, the arbitration participation flag
AP.EXP is cleared.
The contents of register EXCRP can be reset globally under software control by clearing
the “External Event” arbitration participation flag. Note that conversion requests caused
by external trigger pulses are lost if the flag for this channel is already set in the external
conversion request pending register.