R5S72011 RENESAS [Renesas Technology Corp], R5S72011 Datasheet - Page 377
R5S72011
Manufacturer Part Number
R5S72011
Description
32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7200 Series
Manufacturer
RENESAS [Renesas Technology Corp]
Datasheet
1.R5S72011.pdf
(1196 pages)
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11.5
11.5.1
When the value H'0000 0000 is transferred from the working byte count register to the DMA
current byte count register (DMCBCTn) (all data has been transferred), the DMA transfer end
condition is fulfilled and one DMA transfer is complete.
The operations following detection of the DMA transfer end condition are as follows.
• DMA transfer end condition
• Interrupt request generation
• Output of DMA end signal
• Clearing the DMA transfer enable bit (DEN)
• Reloading the source address register
• Reloading the destination address register
• Reloading the byte count register
The DMA transfer end condition detection bit (DEDET) for the corresponding channel in the
DMA transfer end detection register (DMEDET) is set to "1".
An interrupt request is generated for the interrupt controller according to the settings of the
DMA interrupt control register (DMICNT) and the DMA common interrupt control register
(DMICNTA).
The DMA end signal (DTENDm) is output according the setting of the DMA end signal output
control bit (DTCM) in the DMA mode register (DMMODn) for the channel.
If the DMA transfer enable clear bit (ECLR) in DMA control register B (DMCNTBn) is set to
"1", the DEN bit in the DMA control register B (DMCNTBn) is cleared to "0", suspending any
subsequent DMA transfer for the channel.
If the DMA transfer enable clear bit (ECLR) is clear ("0"), the DEN bit is not cleared.
If the DMA source address reload function enable bit (SRLOD) in the DMA control register A
(DMCNTAn) is set to "1", the DMA current source address register (DMCSADRn) is reloaded
with the value in the DMA reload source address register (DMRSADRn).
If the DMA destination address reload function enable bit (DRLOD) in DMA control register
A (DMCNTAn) is set to "1", the DMA current destination address register (DMCDADRn) is
reloaded with the value in the DMA reload destination address register (DMRDADRn).
Completion of DMA Transfer and Interrupts
Completion of DMA Transfer
Section 11 Direct Memory Access Controller (DMAC)
Rev. 2.00 Sep. 07, 2007 Page 349 of 1164
REJ09B0321-0200
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