DocID024597 Rev 5 593/1830
RM0351 Analog-to-digital converters (ADC)
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18.6.6 ADC sample time register 1 (ADC_SMPR1)
Address offset: 0x14
Reset value: 0x0000 0000
Bits 4:2 OVSR[2:0]: Oversampling ratio
This bitfield is set and cleared by software to define the oversampling ratio.
000: 2x
001: 4x
010: 8x
011: 16x
100: 32x
101: 64x
110: 128x
111: 256x
Note: Software is allowed to write these bits only when ADSTART=0 (which ensures that no
conversion is ongoing).
Bit 1 JOVSE: Injected Oversampling Enable
This bit is set and cleared by software to enable injected oversampling.
0: Injected Oversampling disabled
1: Injected Oversampling enabled
Note: Software is allowed to write this bit only when ADSTART=0 and JADSTART=0 (which ensures
that no conversion is ongoing)
Bit 0 ROVSE: Regular Oversampling Enable
This bit is set and cleared by software to enable regular oversampling.
0: Regular Oversampling disabled
1: Regular Oversampling enabled
Note: Software is allowed to write this bit only when ADSTART=0 and JADSTART=0 (which ensures
that no conversion is ongoing)
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
SMPPL
US
Res.
SMP9[2:0] SMP8[2:0] SMP7[2:0] SMP6[2:0] SMP5[2:1]
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1514131211109876543210
SMP
5_0
SMP4[2:0] SMP3[2:0] SMP2[2:0] SMP1[2:0] SMP0[2:0]
rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw
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