>
> in the manual reference charpter 9.13 DMA, source and destination address
> If you are DMAing from an internal peripheral, then it's
> width will be hard-coded and can be read from the user-manual.
you mean it will be set by hard circuit ? maybe i should talk with your hard
engineer.
but as
Hi,
my processor is MPC8247, on Linux 2.6.11
in MPC8247 manual reference, the interrupt of DMA unit belonged PCI bridge.
that is different from SDMA and IDMA. through i do not know what 's the
different. heard SDMA is used to transfer between CPM and 60x. DMA is used
to transfer between 60x bus
thank you dave for your reply
my processor is MPC8247, on Linux 2.6.11
in MPC8247 manual reference, the interrupt of DMA unit belonged PCI bridge.
that is different from SDMA and IDMA. through i do not know what 's the
different. heard SDMA is used to transfer between CPM and 60x. DMA is used
Hi,
Now I attempt to fetch data from peripheral device to SDRAM, and it has been
successed
but how the DMA controller know the data bandwidth of src and dest.
for example, if i get a 16bits data with a 32bits bus, and other 16bits will
be set high
and data will fetched into cache line of dma,
