ST STM32G0 1 Series Reference Manual page 452

Comparator (COMP)
System reset value: 0x0000 0000
31 30 29
LOCK VALUE Res.
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15 14 13
POLARITY WINOUT Res.
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Bit 31 LOCK: COMP1_CSR register lock
Bit 30 VALUE: Comparator 1 output status
Bits 29:25 Reserved, must be kept at reset value
Bit 24:20 BLANKSEL[4:0]: Comparator 1 blanking source selector
Bit 19:18 PWRMODE[1:0]: Comparator 1 power mode selector
Bit 17:16 HYST[1:0]: Comparator 1 hysteresis selector
Bit 15 POLARITY: Comparator 1 polarity selector
Bit 14 WINOUT: Comparator 1 output selector
Bits 13:12 Reserved, must be kept at reset value
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28 27 26
Res. Res. Res.
12 11 10
Res. WINMODE Res.
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This bit is set by software and cleared by a system reset. It locks the comparator 3 control
bits. When locked, all register bits are read-only.
0: Not locked
1: Locked
This bit is read-only. It reflects the level of the comparator 1 output after the polarity selector
and blanking, as indicated in
This bitfield is controlled by software (if not locked). It selects the blanking source:
00000: None (no blanking)
xxxx1: TIM1 OC4
xxx1x: TIM1 OC5
xx1xx: TIM2 OC3
x1xxx: TIM3 OC3
1xxxx: TIM15 OC2
This bitfield is controlled by software (if not locked). It selects the power consumption and as
a consequence the speed of the comparator 1:
00: High speed
01: Medium speed
others: Reserved
This bitfield is controlled by software (if not locked). It selects the hysteresis of the
comparator 1:
00: None
01: Low
10: Medium
11: High
This bit is controlled by software (if not locked). It selects the comparator 1 output polarity:
0: Non-inverted
1: Inverted
This bit is controlled by software (if not locked). It selects the comparator 1 output:
0: COMP1_VALUE
1: COMP1_VALUE XOR COMP2_VALUE (required for window mode, see
25 24 23 22
Res. BLANKSEL
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9 8 7 6
INPSEL INMSEL
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Figure 68.
RM0444 Rev 5
21 20 19 18
PWRMODE
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5 4 3 2
Res. Res.
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Figure
RM0444
17 16
HYST
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1 0
Res. EN
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69)