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RM0319 датащи(PDF) 190 Page - STMicroelectronics

номер детали RM0319
подробное описание детали  SPEAr320S architecture and functionality
PDF  368 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

RM0319 датащи(HTML) 190 Page - STMicroelectronics

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9.
Read Response register and get necessary information of the issued command.
10. Wait for the Transfer Complete Interrupt and DMA Interrupt.
11. If Transfer Complete is set to logic ‘1’, go to Step (14) else if DMA Interrupt is set to
logic ‘1’, go to Step 12. Transfer Complete is higher priority than DMA Interrupt.
12. Write logic ‘1’ to the DMA Interrupt in the Normal Interrupt Status register to clear this
bit.
13. Set the next system address of the next data position to the System Address register
and go to Step (10).
14. Write logic ‘1’ to the Transfer Complete and DMA Interrupt in the Normal Interrupt
Status register to clear this bit.
14.5.7
Transferring data with ADMA
Figure 64.
Data transaction sequence with ADMA
Start
End
(1)
(2)
(3)
(4)
(6)
(7)
(9)
(14)
(5)
(8)
(11)
(12)
(13)
Create Discriptor table
Set ADMA System Address Reg
Set Block Count Reg
Set Argument Reg
Set Transfer Mode Reg
Wait for
Command Complete Int
Command
Complete Int occur
Clr Command Complete Status
Get Response Data
Wait for
Transfer Complete Int
and ADMA Error Int
ADMA Error Int occurs
Check Interrupt
Status
Transfer Complete Int occurs
Clr Transfer Complete
Interrupt Status
Clr ADMA Error
Interrupt Status
Set Command Reg
Set Block Size Reg
Abort ADMA
Operation
(10)
(15)



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