Figure 11.5-1 Workflow Of The Data Protection Function When Dma Transfer Is Used - Fujitsu MB91F109 FR30 Hardware Manual

Figure 11.5-1 Workflow of the Data Protection Function when DMA Transfer is Used

Set DMAC
Start of continuous
A/D conversion
End of one cycle
of conversion
Store conversion data
in data register
End of 2nd cycle
of conversion
End of transfer?
YES
Store conversion data
in data register
End of third
conversion
Continue
End of last
conversion
End
*1: Restarting the A/D converter in stopped state may lead to loss of the stored conversion data.
NO
YES
11.5 Conversion Data Protection Function
The workflow for A/D converter termination is omitted.
Start DMAC
*
Stop A/D converter
temporarily
NO
Start DMAC
Start DMAC
and transfer
Stop A/D
converter
DMAC end interrupt routine
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