Table of Contents
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Bit field
Name
9
WWDG_STOP
8
IWDG_STOP
7:3
Reserved
2
STDBY
1
STOP
0
SLEEP
Description
1: Pause the counter of TIMx.
WWDG debug pause bit.
Set or cleared by software.
0: WWDG running state has no effect.
1: Pause the WWDG counter.
IWDG debug pause bit.
Set or cleared by software.
0: IWDG running state has no effect.
1: Pause the IWDG counter.
Reserved, must keep the reset value.
DBG_STANDBY mode.
Set or cleared by software.
0: (FCLK off, HCLK off) The entire digital circuit section is powered down. From
a software point of view, exiting STANDBY mode is the same as a reset (except
that some status bits indicate that the microcontroller has just exited from
STANDBY state).
1: (FCLK on, HCLK on) The digital circuit part is not powered off, and the FCLK
and HCLK clocks are clocked by the internal RC oscillator (MSI). In addition, the
microcontroller exits STANDBY mode by generating a system reset is the same as
a reset.
DBG_STOP mode.
Set or cleared by software.
0: (FCLK off, HCLK off) In STOP2 mode, the clock controller disables all clocks
(including HCLK and FCLK). When exiting STOP2 mode, the configuration of
the clock is the same as before entering STOP2 mode.
1: (FCLK on, HCLK on) In DBG_STOP2 mode, the FCLK and HCLK clocks are
provided by the internal RC oscillator (MSI). When exiting STOP2 mode, the
software does not need to reconfigure the clock system to start the PLL, crystal
oscillator, etc., and the held registers will not be reset (same operation as
configuring this bit to 0).
DBG_SLEEP mode.
Set or cleared by software.
0: (FCLK on, HCLK off) In SLEEP mode, FCLK is provided by the previously
configured system clock, and HCLK is off. Since SLEEP mode does not reset the
configured clock system, software does not need to reconfigure the clock system
when exiting from SLEEP mode.
1: (FCLK on, HCLK on) In DBG_SLEEP mode, both FCLK and HCLK clocks
are provided by the previously configured system clock.
628 / 631
Nations Technologies Inc.
Tel：+86-755-86309900
Email：info@nationstech.com
Address: Nations Tower, #109 Baoshen Road, Hi-tech Park North.
Nanshan District, Shenzhen, 518057, P.R.China
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