ST STM32L0x3 User Manual

RM0367 Rev 7 381/1043
RM0367 Comparator (COMP)
383
16.5.2 Comparator 2 control and status register (COMP2_CSR)
The COMP2_CSR is the Comparator2 control/status register. It contains all the bits /flags
related to comparator2.
Address offset: 0x1C
System reset value: 0x0000 0000
Bits 5:4 COMP1INNSEL: Comparator 1 Input Minus connection configuration bit
These bits are set and cleared by software (only if COMP1LOCK not set). They select which
input is connected with the Input Minus of comparator 1
00: VREFINT
01: PA0
10: DAC1/PA4
11: DAC2/PA5
Bits 3:1 Reserved, must be kept at reset value
Bit 0 COMP1EN: Comparator 1 enable bit
This bit is set and cleared by software (only if COMP1LOCK not set). It switches
oncomparator1
0: Comparator 1 switched OFF.
1: Comparator 1 switched ON.
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
COMP2
LOCK
COMP2
VALUE
Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. Res.
rs r
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
COMP2
POLARITY
Res.
COMP2
LPTIMIN1
COMP2
LPTIMIN2
Res. COMP2INPSEL Res. COMP2INNSEL
COMP2
SPEED
Res. Res.
COMP2
EN
rw rw rw rw rw rw rw rw rw rw rw
Bit 31 COMP2LOCK: COMP2_CSR register lock bit
This bit is set by software and cleared by a hardware system reset. It locks the whole
content of the comparator 2 control register, COMP2_CSR[31:0]
0: COMP2_CSR[31:0] for comparator 1 are read/write
1: COMP2_CSR[31:0] for comparator 1 are read-only
Bit 30 COMP2VALUE: Comparator 2 output status bit
This bit is read-only. It reflects the current comparator 2 output taking into account
COMP2POLARITY bit effect.
Bits 29:16 Reserved, must be kept at reset value
Bit 15 COMP2POLARITY: Comparator 2 polarity selection bit
This bit is set and cleared by software (only if COMP2LOCK not set). It inverts Comparator
1 polarity.
0: Comparator 2 output value not inverted
1: Comparator 2 output value inverted
Bit 14 Reserved, must be kept at reset value

ST STM32L0x3 Specifications

General

Brand	ST
Model	STM32L0x3
Category	Microcontrollers
Language	English