Texas Instruments TMS320F2837 D Series

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Direct Memory Access (DMA)

TMS320F2837xD Microcontroller Workshop - Direct Memory Access 8 - 11

DMA Registers

DmaRegs.name (lab file: Dma.c)

DMACTRL DMA Control Register

PRIORITYCTRL1 Priority Control Register 1

MODE Mode Register

CONTROL Control Register

BURST_SIZE Burst Size Register

BURST_COUNT Burst Count Register

SRC_BURST_STEP Source Burst Step Size Register

DST_BURST_STEP Destination Burst Step Size Register

TRANSFER_SIZE Transfer Size Register

TRANSFER_COUNT Transfer Count Register

SRC_TRANSFER_STEP Source Transfer Step Size Register

DST_TRANSFER_STEP Destination Transfer Step Size Register

SRC_ADDR_SHADOW Shadow Source Address Pointer Register

SRC_ADDR Active Source Address Pointer Register

DST_ADDR_SHADOW Shadow Destination Address Pointer Register

DST_ADDR Active Destination Address Pointer Register

DMACHSRCSELx

(x = 1 or 2) Trigger Source Selection Register

DMA CHx Registers

Refer to the Technical Reference Manual for a complete listing of registers

DMA Control Register

DmaRegs.DMACTRL

HARDRESETPRIORITYRESET

015 - 2

reserved

Priority Reset

0 = writes ignored (always reads back 0)

1 = reset state-machine after any pending

burst transfer complete

Hard Reset

0 = writes ignored (always reads back 0)

1 = reset DMA module

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