STR720 datasheet(93/401 Pages) STMICROELECTRONICS

tên linh kiện	STR720

Giải thích chi tiết về linh kiện	ARM720T 16/32-BIT MCU WITH 16K RAM, USB, CAN, 3 TIMERS, ADC, 6 COMMUNICATIONS INTERFACES

PDF	401 Pages

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nhà sản xuất	STMICROELECTRONICS [STMicroelectronics]

Trang chủ	http://www.st.com

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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.

765432

DMADeCurrHiX

765432

DMADeCurrLoX

STR720 bảng dữ liệu(PDF) 93 Page - STMicroelectronics