202
Chapter 6
DMA Functions (DMA Controller)
User’s Manual U16580EE3V1UD00
Figure 6-9:
Operation of DMA Channel 0/1
Note:
DMA transfer completion interrupt has the same interrupt vector address as the corresponding
A/D conversion completion interrupt (INTADn), and replaces that interrupt.
Remark:
n = 0, 1
(number of ADC channel)
x = n
(number of DMA transfer channel)
Operation of DMA channel 0/1
DEx bit = 1 ?
DEx bit newly
written ?
ADDMARQn
occured ?
Transfer content from ADDMAn register to
iRAM : (MARx)
ADDMAn
Increment source pointer:
MARx MARx + 2
Decrement DMA transfer count register:
DTCRx DTCRx - 1
DTCRx = 0?
Set DMA transfer status bit: DMASx = 1
Generate interrupt signal (INTDMAx
Note
)
yes
no
yes
yes
no
no
yes
no
DMA transfer will be enabled
by write access to the
corresponding DEn bit.
←
←
←
Содержание MuPD70F3187
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Страница 144: ...144 Chapter 3 CPU Functions User s Manual U16580EE3V1UD00 MEMO ...
Страница 192: ...192 Chapter 5 Memory Access Control Function μPD70F3187 only User s Manual U16580EE3V1UD00 MEMO ...
Страница 312: ...312 Chapter 9 16 Bit Timer Event Counter P User s Manual U16580EE3V1UD00 MEMO ...
Страница 534: ...534 Chapter 11 16 bit Timer Event Counter T User s Manual U16580EE3V1UD00 ...
Страница 969: ...969 Chapter 20 Port Functions User s Manual U16580EE3V1UD00 MEMO ...
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Страница 976: ...976 Chapter 22 Internal RAM Parity Check Function User s Manual U16580EE3V1UD00 MEMO ...
Страница 984: ...984 Chapter 23 On Chip Debug Function OCD User s Manual U16580EE3V1UD00 MEMO ...
Страница 1006: ...1006 Chapter 24 Flash Memory User s Manual U16580EE3V1UD00 MEMO ...
Страница 1036: ...1036 Chapter 27 Recommended Soldering Conditions User s Manual U16580EE3V1UD00 MEMO ...
Страница 1046: ...1046 Appendix A Index User s Manual U16580EE3V1UD00 MEMO ...
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