STMicroelectronics STM32WL5 Series Reference Manual page 1410

Debug support (DBG)
Bits 9:1 Reserved, must be kept at reset value.
Bit 0 DBG_TIM2_STOP: TIM2 stop in CPU1 debug
0: Normal operation. TIM2 continues to operate while CPU1 is in debug mode.
1: Stop in debug. TIM2 is frozen while CPU1 is in debug mode.
38.12.4 DBGMCU CPU2 APB1 peripheral freeze register 1
(DBGMCU_C2APB1FZR1)
Address offset: 0x040
Reset value: 0x0000 0000
31 30 29
DBG_
LPTIM1 Res. Res.
_STOP
rw
15 14 13
Res. Res. Res.
Bit 31 DBG_LPTIM1_STOP: LPTIM1 stop in CPU2 debug
0: Normal operation. LPTIM1 continues to operate while CPU2 is in debug mode.
1: Stop in debug. LPTIM1 is frozen while CPU2 is in debug mode.
Bits 30:24 Reserved, must be kept at reset value.
Bit 23 DBG_I2C3_STOP: I2C3 SMBUS timeout stop in CPU2 debug
0: Normal operation. I2C3 SMBUS timeout continues to operate while CPU2 is in debug
mode.
1: Stop in debug. I2C3 SMBUS timeout is frozen while CPU2 is in debug mode.
Bit 22 DBG_I2C2_STOP: I2C2 SMBUS timeout stop in CPU2 debug
0: Normal operation. I2C2 SMBUS timeout continues to operate while CPU2 is in debug
mode.
1: Stop in debug. I2C2 SMBUS timeout is frozen while CPU2 is in debug mode.
Bit 21 DBG_I2C1_STOP: I2C1 SMBUS timeout stop in CPU2 debug
0: Normal operation. I2C1 SMBUS timeout continues to operate while CPU2 is in debug
mode.
1: Stop in debug. I2C1 SMBUS timeout is frozen while CPU2 is in debug mode.
Bits 20:13 Reserved, must be kept at reset value.
Bit 12 DBG_IWDG_STOP: IWDG stop in CPU2 debug
0: Normal operation. IWDG continues to operate while CPU2 is in debug mode.
1: Stop in debug. IWDG is frozen while CPU2 is in debug mode.
Bit 11 Reserved, must be kept at reset value.
Bit 10 DBG_RTC_STOP: RTC stop in CPU2 debug
0: Normal operation. RTC continues to operate while CPU2 is in debug mode.
1: Stop in debug. RTC is frozen while CPU2 is in debug mode.
Bits 9:1 Reserved, must be kept at reset value.
1410/1450
28 27 26 25
Res. Res. Res. Res.
12 11 10
DBG_ DBG_
IWDG Res. RTC Res.
_STOP _STOP
rw rw
24 23 22
DBG_ DBG_
Res. I2C3_ I2C2
STOP _STOP
rw rw
9 8 7 6
Res. Res. Res.
RM0453 Rev 5
21 20 19 18
DBG_
I2C1 Res. Res. Res.
_STOP
rw
5 4 3
Res. Res. Res. Res.
RM0453
17 16
Res. Res.
2 1 0
DBG_
Res. TIM2
_STOP
rw