Direct memory access controller (DMA) RM0402
222/1163 RM0402 Rev 6
Bit 10 MINC: memory increment mode
This bit is set and cleared by software.
0: memory address pointer is fixed
1: memory address pointer is incremented after each data transfer (increment is done
according to MSIZE)
This bit is protected and can be written only if EN = 0.
Bit 9 PINC: peripheral increment mode
This bit is set and cleared by software.
0: peripheral address pointer fixed
1: peripheral address pointer incremented after each data transfer (increment done
according to PSIZE)
This bit is protected and can be written only if EN = 0.
Bit 8 CIRC: circular mode
This bit is set and cleared by software and can be cleared by hardware.
0: circular mode disabled
1: circular mode enabled
When the peripheral is the flow controller (bit PFCTRL = 1) and the stream is enabled
(EN = 1), then this bit is automatically forced by hardware to 0.
It is automatically forced by hardware to 1 if the DBM bit is set, as soon as the stream is
enabled (EN = 1).
Bits 7:6 DIR[1:0]: data transfer direction
These bits are set and cleared by software.
00: peripheral-to-memory
01: memory-to-peripheral
10: memory-to-memory
11: reserved
These bits are protected and can be written only if EN = 0.
Bit 5 PFCTRL: peripheral flow controller
This bit is set and cleared by software.
0: DMA is the flow controller.
1: The peripheral is the flow controller.
This bit is protected and can be written only if EN = 0.
When the memory-to-memory mode is selected (bits DIR[1:0]=10), then this bit is
automatically forced to 0 by hardware.
Bit 4 TCIE: transfer complete interrupt enable
This bit is set and cleared by software.
0: TC interrupt disabled
1: TC interrupt enabled
Bit 3 HTIE: half transfer interrupt enable
This bit is set and cleared by software.
0: HT interrupt disabled
1: HT interrupt enabled
Bit 2 TEIE: transfer error interrupt enable
This bit is set and cleared by software.
0: TE interrupt disabled
1: TE interrupt enabled
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