Reset and clock control (RCC) for STM32F412xx
6.3.15
RCC AHB1 peripheral clock enable in low power mode register
(RCC_AHB1LPENR)
Address offset: 0x50
Reset value: 0x0061 90FF
Access: no wait state, word, half-word and byte access.
31
30
29
Res.
Res.
Res.
15
14
13
FLITF
Res.
Res.
LPEN
LPEN
rw
Bits 31:23 Reserved, must be kept at reset value.
Bit 22 DMA2LPEN: DMA2 clock enable during Sleep mode
Set and cleared by software.
0: DMA2 clock disabled during Sleep mode
1: DMA2 clock enabled during Sleep mode
Bit 21 DMA1LPEN: DMA1 clock enable during Sleep mode
Set and cleared by software.
0: DMA1 clock disabled during Sleep mode
1: DMA1 clock enabled during Sleep mode
Bits 20:17 Reserved, must be kept at reset value.
Bit 16 SRAM1LPEN: SRAM1interface clock enable during Sleep mode
Set and cleared by software.
0: SRAM1 interface clock disabled during Sleep mode
1: SRAM1 interface clock enabled during Sleep mode
Bit 15 FLITFLPEN: Flash interface clock enable during Sleep mode
Set and cleared by software.
0: Flash interface clock disabled during Sleep mode
1: Flash interface clock enabled during Sleep mode
Bits 14:13 Reserved, must be kept at reset value.
Bit 12 CRCLPEN: CRC clock enable during Sleep mode
Set and cleared by software.
0: CRC clock disabled during Sleep mode
1: CRC clock enabled during Sleep mode
Bits 11:8 Reserved, must be kept at reset value.
Bit 7 GPIOHLPEN: IO port H clock enable during sleep mode
Set and reset by software.
0: IO port H clock disabled during sleep mode
1: IO port H clock enabled during sleep mode
146/1163
28
27
26
25
Res.
Res.
Res.
Res.
12
11
10
9
CRC
Res.
Res.
Res.
rw
24
23
22
DMA2
Res.
Res.
LPEN
rw
8
7
6
GPIOH
GPIOG
GPIOF
Res.
LPEN
LPEN
rw
rw
RM0402 Rev 6
21
20
19
18
DMA1
Res.
Res.
Res.
LPEN
rw
5
4
3
2
GPIOE
GPIOD
GPIOC
LPEN
LPEN
LPEN
LPEN
rw
rw
rw
rw
RM0402
17
16
SRAM1
Res.
LPEN
rw
1
0
GPIOB
GPIOA
LPEN
LPEN
rw
rw
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