CHAPTER 10: DMAC
FM4 Peripheral Manual, Doc. No. 002-04856 Rev. *E 485
− Additional Matter 1
See Additional Matter 1 in the software transfer procedure.
In the case of hardware transfer, always write 0 to ST.
− Additional Matter 2
See Additional Matter 2 in the software transfer procedure.
− Additional Matter 3
See Additional Matter 3 in the software transfer procedure.
− Additional Matter 4
See Additional Matter 4 in the software transfer procedure.
− Additional Matter 5
If the transfer request signal (interrupt signal) from the Peripheral needs to be deasserted, the
following method is available. Normally, the interrupt signal from the Peripheral is the interrupt
factor flag masked (logic AND) by the interrupt enable flag. The interrupt signal can be
deasserted by resetting either of the flags. When the interrupt enable flag is reset and then set,
the rising edge occurs to the interrupt signal. Following this procedure can notify DMAC of the
transfer request for Block transfer again. For details, check the manual for each Peripheral.
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