Dma Stream X Peripheral Address Register (Dma_Sxpar); Dma Stream X Memory 0 Address Register (Dma_Sxm0Ar); Dma Stream X Memory 1 Address Register (Dma_Sxm1Ar) - ST STM32F423 Reference Manual

Advanced arm-based 32-bit mcus
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Direct memory access controller (DMA)
9.5.7

DMA stream x peripheral address register (DMA_SxPAR)

Address offset: 0x18 + 0x18 * x, (x = 0 to 7)
Reset value: 0x0000 0000
31
30
29
rw
rw
rw
15
14
13
rw
rw
rw
Bits 31:0 PAR[31:0]: peripheral address
9.5.8

DMA stream x memory 0 address register (DMA_SxM0AR)

Address offset: 0x1C + 0x18 * x, (x = 0 to 7)
Reset value: 0x0000 0000
31
30
29
rw
rw
rw
15
14
13
rw
rw
rw
Bits 31:0 M0A[31:0]: memory 0 address
9.5.9

DMA stream x memory 1 address register (DMA_SxM1AR)

Address offset: 0x20 + 0x18 * x, (x = 0 to 7)
Reset value: 0x0000 0000
31
30
29
rw
rw
rw
15
14
13
rw
rw
rw
242/1324
28
27
26
25
rw
rw
rw
rw
12
11
10
9
rw
rw
rw
rw
Base address of the peripheral data register from/to which the data is read/written.
These bits are write-protected and can be written only when bit EN = '0' in the DMA_SxCR
register.
28
27
26
25
rw
rw
rw
rw
12
11
10
9
rw
rw
rw
rw
Base address of memory area 0 from/to which the data is read/written.
These bits are write-protected. They can be written only if:
the stream is disabled (bit EN= '0' in the DMA_SxCR register) or
the stream is enabled (EN='1' in DMA_SxCR register) and bit CT = '1' in the
DMA_SxCR register (in double-buffer mode).
28
27
26
25
rw
rw
rw
rw
12
11
10
9
rw
rw
rw
rw
24
23
22
PAR[31:16]
rw
rw
rw
8
7
6
PAR[15:0]
rw
rw
rw
24
23
22
M0A[31:16]
rw
rw
rw
8
7
6
M0A[15:0]
rw
rw
rw
24
23
22
M1A[31:16]
rw
rw
rw
8
7
6
M1A[15:0]
rw
rw
rw
RM0430 Rev 8
21
20
19
18
rw
rw
rw
rw
5
4
3
2
rw
rw
rw
rw
21
20
19
18
rw
rw
rw
rw
5
4
3
2
rw
rw
rw
rw
21
20
19
18
rw
rw
rw
rw
5
4
3
2
rw
rw
rw
rw
RM0430
17
16
rw
rw
1
0
rw
rw
17
16
rw
rw
1
0
rw
rw
17
16
rw
rw
1
0
rw
rw

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