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7UGT /CPWCN
UM008101-0601
Direct Memory Access
Figure 21.
Byte Mode
RDY
Active
?
Transfer/Search One Byte
(See
Figure 20)
• Interrupt
• Release Bus
• Auto Restart
Request Bus
Enable
DMA
End
?
of Block
NO
NO
YES
Set Status Flag
YES
Release Bus
(CPU Executes
at least one
Machine Cycle)
