22.8.1 Control


Bit	15	14	13	12	11	10	9	8
					LVLENx3	LVLENx2	LVLENx1	LVLENx0
Access					R/W	R/W	R/W	R/W
Reset					0	0	0	0


Bit	7	6	5	4	3	2	1	0
							DMAENABLE	SWRST
Access							R/W	R/W
Reset							0	0

Bits 8, 9, 10, 11 – LVLENxx Priority Level x Enable

When this bit is set, all requests with the corresponding level will be fed into the arbiter block. When cleared, all requests with the corresponding level will be ignored.

For details on arbitration schemes, see Arbitration from Related Links.

These bits are not enable-protected.

Value	Description
0	Transfer requests for Priority level x will not be handled.
1	Transfer requests for Priority level x will be handled.

Bit 1 – DMAENABLE DMA Enable

Setting this bit will enable the DMA module.

Writing a ‘0’ to this bit will disable the DMA module. When writing a ‘0’ during an ongoing transfer, the bit will not be cleared until the internal data transfer buffer is empty and the DMA transfer is aborted. The internal data transfer buffer will be empty once the ongoing burst transfer is completed.

This bit is not enable-protected.

Value	Description
0	The peripheral is disabled.
1	The peripheral is enabled.

Bit 0 – SWRST Software Reset

Writing a ‘0’ to this bit has no effect.

Writing a ‘1’ to this bit when the DMAC module is disabled (DMAENABLE bit set to ‘0’ ), resets all registers in the DMAC (except DBGCTRL) to their initial state. If either the DMAC or CRC module is enabled, the Reset request will be ignored and the DMAC will return an access error.

Value	Description
0	There is no Reset operation ongoing.
1	A Reset operation is ongoing.

Name:	CTRL
Offset:	0x00
Reset:	0x0000
Property:	PAC Write-Protection, Enable-Protected