Reset and clock control (RCC)
31
30
29
Res.
Res.
Res.
15
14
13
Res.
Res.
Res.
SMEN
1. Only significant on devices integrating the corresponding peripheral, otherwise reserved with zero reset value. Refer to
Section 1.4: Availability of
Bits 31:19 Reserved, must be kept at reset value.
Bit 18 RNGSMEN: RNG clock enable during Sleep and Stop mode
Bits 17 Reserved, must be kept at reset value.
Bit 16 AESSMEN: AES hardware accelerator clock enable during Sleep mode
Bits 15:13 Reserved, must be kept at reset value.
Bit 12 CRCSMEN: CRC clock enable during Sleep mode
Bits 11:10 Reserved, must be kept at reset value.
Bit 9 SRAMSMEN: SRAM clock enable during Sleep mode
Bit 8 FLASHSMEN: Flash memory interface clock enable during Sleep mode
204/1390
28
27
26
25
Res.
Res.
Res.
Res.
12
11
10
9
CRC
SRAM
Res.
Res.
SMEN
rw
rw
peripherals.
Set and cleared by software.
0: Disable
1: Enable
Set and cleared by software.
0: Disable
1: Enable
Set and cleared by software.
0: Disable
1: Enable
Set and cleared by software.
0: Disable
1: Enable
Set and cleared by software.
0: Disable
1: Enable
This bit can be activated only when the Flash memory is in power down mode.
24
23
22
Res.
Res.
Res.
8
7
6
FLASH
Res.
Res.
SMEN
rw
RM0444 Rev 5
21
20
19
18
RNG
SMEN
Res.
Res.
Res.
(1)
rw
5
4
3
2
Res.
Res.
Res.
Res.
(1)
(1)
RM0444
17
16
AES
SMEN
Res.
(1)
rw
1
0
DMA2
DMA1
SMEN
SMEN
(1)
rw
rw
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