M16C User Manual.pdf

DMAC ApplicationsMitsubishi microcomputersM16C / 62 GroupSINGLE-CHIP 16-BIT CMOS MICROCOMPUTERInitialization of DMA0b7b00 0 0 1 0DMA0 request cause select registerDM0SL [Address 03B816]b70 1b01 0 1 1DMA0 control registerDM0CON [Address 002C16]DMA request cause select bitb3 b2 b1 b00 0 1 0 : Timer A0Software DMA request bit0 : Software is not generatedTransfer unit bit select bit1 : 8 bitsRepeat transfer mode select bit1 : Repeat transferDMA request bit0 : DMA not requestedDMA enable bit1 : EnabledSource address direction select bit1 : ForwardDestination address directionselect bit0 : Fixedb23b7b23b70A160016b16 b15 b8 b7 b00016 0016 DMA0 source pointer SAR0 [Address 002216, 002116, 002016]b0 b7b0b16 b15 b8 b7 b00816 0016 DMA0 destination DAR0 [Address 002616, 002516, 002416]pointerb0 b7b0b15 b8 b7 b00016 7F16 DMA0 transfer counter TCR0 [Address 002916, 002816]b7b0Initialization of DMA1b7b00 0 0 1 0DMA0 request cause select registerDM1SL [Address 03BA16]DMA request cause select bitb3 b2 b1 b00 0 1 0 : Timer A0Software DMA request bit0 : Software is not generatedb71 0b01 0 1 1DMA1 control registerDM1CON [Address 003C16]Transfer unit bit select bit1 : 8 bitsRepeat transfer mode select bit1 : Repeat transferDMA request bit0 : DMA not requestedDMA enable bit1 : EnabledSource address direction select bit0 : FixedDestination address directionselect bit1 : Forwardb23b7b23b700160C16b16 b15 b8 b7 b00816 0016 DMA1 source pointer SAR1 [Address 003216, 003116, 003016]b0 b7b0b16 b15 b8 b7 b00016 0016 DMA1 destination DAR1 [Address 003616, 003516, 003416]b0 b7b0pointerb15 b8 b7 b00016 7F16 DMA1 transfer counter TCR1 [Address 003916, 003816]b7b0Continued to the next pageFigure 3.6.3. Set-up procedure of memory to memory DMA transfer (1)474