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STR720 Datasheet(PDF) 93 Page - STMicroelectronics

Part # STR720
Description  ARM720T 16/32-BIT MCU WITH 16K RAM, USB, CAN, 3 TIMERS, ADC, 6 COMMUNICATIONS INTERFACES
PDF  401 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STR720 Datasheet(HTML) 93 Page - STMicroelectronics

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STR720 - DMA CONTROLLER (DMAC)
93/401
Current Destination address high X (DMADeCurrHiX) (X=2,3)
Address Offset: A0h - E0h
Reset value: 0000h
DMADeCurrHiX holds the current value of the high destination address pointer related to
stream X. This register is read only.
Bit 15:0 = DMADeCurrHiX[15:0]
Current Destination address low X (DMADeCurrLoX) (X=2,3)
Address Offset: 24h - 64h - A4h - E4h
Reset value: 0000h
DMADeCurrLoX holds the current value of the low destination address pointer related to
stream X. This register is read only.
Bit 15:0 = DMADeCurrLoX[15:0]
The value in the registers (DMADeCurrLo and DMADeCurrHi) is used as an AHB address in
a DMA to destination data transfer over the AHB bus. If the DeInc bit in the Control Register is
set to ‘1’, the value in the Current Destination Registers will be incremented as data are
transferred from DMA to destination. The value will be incremented at the end of the address
phase of the AHB bus transfer by the transferred size value. If DeInc bit is ‘0’, the Current
Destination Register will hold a same value during the whole DMA data transfer.
15
14
13
12
11
10
9
8
765432
1
0
DMADeCurrHiX
r
15
14
13
12
11
10
9
8
765432
1
0
DMADeCurrLoX
r
1



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