Digital filter for sigma delta modulators (DFSDM)
Bits 15:12 BKSCD[3:0]: Break signal assignment for short-circuit detector on channel y
BKSCD[i] = 0: Break i signal not assigned to short-circuit detector on channel y
BKSCD[i] = 1: Break i signal assigned to short-circuit detector on channel y
Bits 11:8 Reserved, must be kept at reset value.
Bits 7:0 SCDT[7:0]: short-circuit detector threshold for channel y
These bits are written by software to define the threshold counter for the short-circuit detector. If this
value is reached, then a short-circuit detector event occurs on a given channel.
28.7.4
DFSDM channel y watchdog filter data register
(DFSDM_CHyWDATR)
This register contains the data resulting from the analog watchdog filter associated to the
input channel y.
Address offset: 0x0C + 0x20 * y, (y = 0 to 7)
Reset value: 0x0000 0000
31
30
29
28
Res.
Res.
Res.
Res.
15
14
13
12
r
r
r
r
Bits 31:16 Reserved, must be kept at reset value.
Bits 15:0 WDATA[15:0]: Input channel y watchdog data
Data converted by the analog watchdog filter for input channel y. This data is continuously converted
(no trigger) for this channel, with a limited resolution (OSR=1..32/sinc order = 1..3).
28.7.5
DFSDM channel y data input register (DFSDM_CHyDATINR)
This register contains 16-bit input data to be processed by DFSDM filter module. Write
access can be either word access (32-bit) or half-word access (16-bit).
Address offset: 0x10 + 0x20 * y, (y = 0 to 7)
Reset value: 0x0000 0000
31
30
29
28
rw
rw
rw
rw
15
14
13
12
rw
rw
rw
rw
864/2301
27
26
25
24
Res.
Res.
Res.
Res.
11
10
9
8
WDATA[15:0]
r
r
r
r
27
26
25
24
INDAT1[15:0]
rw
rw
rw
rw
11
10
9
8
INDAT0[15:0]
rw
rw
rw
rw
RM0432 Rev 6
23
22
21
20
Res.
Res.
Res.
Res.
7
6
5
4
r
r
r
r
23
22
21
20
rw
rw
rw
rw
7
6
5
4
rw
rw
rw
rw
RM0432
19
18
17
16
Res.
Res.
Res.
Res.
3
2
1
0
r
r
r
19
18
17
16
rw
rw
rw
rw
3
2
1
0
rw
rw
rw
rw
r
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