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AT32F413
Series Reference Manual
2022.06.27
Page 109
Rev 2.00
Table 9-4 DMA2 requests for each channel
Periphe
rals
Channel 1
Channel 2
Channel 3
Channel 4
Channel 5
Channel 6
Channel 7
UART4
UART4_RX
UART4_TX
SDIO1
SDIO1
TMR5
TMR5_CH4
TMR5_TRIG
TMR5_CH3
TMR5_
OVERFLOW
TMR5_CH2
TMR5_CH1
"
TMR8
TMR8_CH4
TMR8_TRIG
TMR8_HALL"
TMR8_CH1
TMR8_CH2
9.3.8
Flexible DMA request mapping
In flexible request mapping mode (DMA_FLEX_EN = 1), the request source of each channel is
programmed by CHx_SRC [x=1, 2, 3, 4, 5, 6, 7].
The table below shows CHx_SRC values and their corresponding request sources.
Table 9-5 Flexible DMA requests for each channel
DMAMUX
request
Source
DMAMUX
request
Source
DMAMUX
request
Source
DMAMUX
Source
Source
1
reserved
33
UART5_RX
65
TMR2_CH2
97
reserved
2
ADC1
34
UART5_TX
66
TMR2_CH3
98
reserved
3
reserved
35
reserved
67
TMR2_CH4
99
reserved
4
reserved
36
reserved
68
reserved
100
reserved
5
reserved
37
reserved
69
TMR3_TRIG
101
reserved
6
reserved
38
reserved
70
reserved
102
reserved
7
reserved
39
reserved
71
TMR3_
OVERFLOW
103
reserved
8
reserved
40
reserved
72
TMR3_CH1
104
reserved
9
SPI1_RX
41
I2C1_RX
73
TMR3_CH2
105
reserved
10
SPI1_TX
42
I2C1_TX
74
TMR3_CH3
106
reserved
11
SPI2_RX
43
I2C2_RX
75
TMR3_CH4
107
reserved
12
SPI2_TX
44
I2C1_TX
76
reserved
108
reserved
13
reserved
45
reserved
77
TMR4_TRIG
109
TMR8_TRIG
14
reserved
46
reserved
78
reserved
110
TMR8_HALL
15
reserved
47
reserved
79
TMR4_
OVERFLOW
111
TMR8_
OVERFLOW
16
reserved
48
reserved
80
TMR4_CH1
112
TMR8_CH1
17
reserved
49
SDIO1
81
TMR4_CH2
113
TMR8_CH2
18
reserved
50
reserved
82
TMR4_CH3
114
TMR8_CH3
19
reserved
51
reserved
83
TMR4_CH4
115
TMR8_CH4
20
reserved
52
reserved
84
reserved
116
reserved
21
reserved
53
TMR1_TRIG
85
TMR5_TRIG
117
reserved
22
reserved
54
TMR1_HALL
86
reserved
118
reserved
23
reserved
55
TMR1_
OVERFLOW
87
TMR5_
OVERFLOW
119
reserved