Atmel /AT91SAM9M10 /DMAC /CTRLB4

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Interpret as CTRLB4

31 2827 2423 2019 1615 1211 87 43 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 (AHB_IFO)SIF0 (AHB_IFO)DIF0 (SRC_DSCR)SRC_DSCR 0 (DST_DSCR)DST_DSCR 0 (MEM2MEM_DMA_FC)FC0 (INCREMENTING)SRC_INCR 0 (INCREMENTING)DST_INCR 0 (IEN)IEN 0 (AUTO)AUTO

DST_INCR=INCREMENTING, SRC_INCR=INCREMENTING, DIF=AHB_IFO, FC=MEM2MEM_DMA_FC, SIF=AHB_IFO

Description

DMAC Channel Control B Register (ch_num = 4)

Fields

SIF

Source Interface Selection Field

0 (AHB_IFO): The source transfer is done via AHB-Lite Interface 0

1 (AHB_IF1): The source transfer is done via AHB-Lite Interface 1

2 (AHB_IF2): The source transfer is done via AHB-Lite Interface 2

DIF

Destination Interface Selection Field

0 (AHB_IFO): The destination transfer is done via AHB-Lite Interface 0

1 (AHB_IF1): The destination transfer is done via AHB-Lite Interface 1

2 (AHB_IF2): The destination transfer is done via AHB-Lite Interface 2

SRC_DSCR
DST_DSCR
FC

0 (MEM2MEM_DMA_FC): Memory-to-Memory Transfer DMAC is flow controller

1 (MEM2PER_DMA_FC): Memory-to-Peripheral Transfer DMAC is flow controller

2 (PER2MEM_DMA_FC): Peripheral-to-Memory Transfer DMAC is flow controller

3 (PER2PER_DMA_FC): Peripheral-to-Peripheral Transfer DMAC is flow controller

4 (PER2MEM_PER_FC): Peripheral-to-Memory Transfer DMAC is flow controller

5 (MEM2PER_PER_FC): Memory-to-Peripheral Transfer DMAC is flow controller

6 (PER2PER_SPER_FC): Peripheral-to-Peripheral Transfer DMAC is flow controller

7 (PER2PER_DPER_FC): Peripheral-to-Peripheral Transfer DMAC is flow controller

SRC_INCR

0 (INCREMENTING): The source address is incremented

1 (DECREMENTING): The source address is decremented

2 (FIXED): The source address remains unchanged

DST_INCR

0 (INCREMENTING): The destination address is incremented

1 (DECREMENTING): The destination address is decremented

2 (FIXED): The destination address remains unchanged

IEN
AUTO

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