This bit is cleared when the Channel Pending bit in the Channel Status register
(CHSTATUS.PEND) for the corresponding channel is either set, or by writing a
‘1’ to it. See CHSTATUS in the DMAC Register
Summary from Related Links.
This bit is set if CHSTATUS.PEND is already ‘1’ when writing a
‘1’ to that bit. See CHSTATUS in the DMAC Register
Summary from Related Links.
Writing a ‘0’ to this bit will clear the bit.
Writing a ‘1’ to this bit will generate a DMA software trigger on
channel x, if CHSTATUS.PEND=0 for channel x. CHSTATUS.PEND will be set and SWTRIGn
will remain cleared. See CHSTATUS in the DMAC Register Summary from
Related Links.