ST STM32F412 User Manual

Direct memory access controller (DMA) RM0402
220/1163 RM0402 Rev 6
9.5.5 DMA stream x configuration register (DMA_SxCR)
This register is used to configure the concerned stream.
Address offset: 0x010 + 0x018 * x, (x = 0 to 7)
Reset value: 0x0000 0000
Bits 24, 18, 8, 2 CDMEIFx: stream x clear direct mode error interrupt flag (x = 7 to 4)
Writing 1 to this bit clears the corresponding DMEIFx flag in the DMA_HISR register.
Bits 23, 17, 7, 1 Reserved, must be kept at reset value.
Bits 22, 16, 6, 0 CFEIFx: stream x clear FIFO error interrupt flag (x = 7 to 4)
Writing 1 to this bit clears the corresponding CFEIFx flag in the DMA_HISR register.
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
Res. Res. Res. Res. CHSEL[2:0] MBURST [1:0] PBURST[1:0] Res. CT DBM PL[1:0]
rw rw rw rw rw rw rw rw rw rw rw
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
PINCOS MSIZE[1:0] PSIZE[1:0] MINC PINC CIRC DIR[1:0] PFCTRL TCIE HTIE TEIE DMEIE EN
rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw
Bits 31:28 Reserved, must be kept at reset value.
Bits 27:25 CHSEL[2:0]: channel selection
These bits are set and cleared by software.
000: channel 0 selected
001: channel 1 selected
010: channel 2 selected
011: channel 3 selected
100: channel 4 selected
101: channel 5 selected
110: channel 6 selected
111: channel 7 selected
These bits are protected and can be written only if EN is 0.
Bits 24:23 MBURST[1:0]: memory burst transfer configuration
These bits are set and cleared by software.
00: single transfer
01: INCR4 (incremental burst of 4 beats)
10: INCR8 (incremental burst of 8 beats)
11: INCR16 (incremental burst of 16 beats)
These bits are protected and can be written only if EN = 0.
In direct mode, these bits are forced to 0x0 by hardware as soon as bit EN = 1.
Bits 22:21 PBURST[1:0]: peripheral burst transfer configuration
These bits are set and cleared by software.
00: single transfer
01: INCR4 (incremental burst of 4 beats)
10: INCR8 (incremental burst of 8 beats)
11: INCR16 (incremental burst of 16 beats)
These bits are protected and can be written only if EN = 0.
In direct mode, these bits are forced to 0x0 by hardware.

ST STM32F412 Specifications

General

Brand	ST
Model	STM32F412
Category	Microcontrollers
Language	English