Reset and clock control (RCC)
6.4.31
RCC register map
The following table gives the RCC register map and the reset values.
Off-
Register
set
RCC_CR
0x00
Reset value
RCC_ICSCR
0x04
Reset value
RCC_CFGR
0x08
Reset value
RCC_PLL
CFGR
0x0C
Reset value
RCC_
PLLSAI1
0x10
CFGR
Reset value
RCC_
PLLSAI2
0x14
CFGR
Reset value
RCC_CIER
0x18
Reset value
RCC_CIFR
0x1C
Reset value
RCC_CICR
0x20
Reset value
250/1693
Table 31. RCC register map and reset values
0
0
0
0
0
0
HSITRIM[4:0]
1
0
0
0
0
x
MCOPRE
MCOSEL
[2:0]
[2:0]
0
0
0
0
0
0
PLLR
[1:0]
0
0
0
PLL
SAI1R
SAI1Q
[1:0]
0
0
0
PLL
SAI2R
[1:0]
0
0
0
DocID024597 Rev 3
0
0
0
0
HSICAL[7:0]
x
x
x
x
x
x
x
0
0
PLLQ
[1:0]
0
0
0
0
0
PLL
[1:0]
0
0
0
0
0
0
0
MSIRANGE
[3:0]
0
0
0
0
0
1
MSITRIM[7:0]
0
0
0
0
0
0
0
x
x
PPRE2
PPRE1
HPRE[3:0]
[2:0]
[2:0]
0
0
0
0
0
0
0
0
PLLN
[6:0]
0
0
1
0
0
0
0
0
PLLSAI1N
[6:0]
0
0
1
0
0
0
0
PLLSAI2N
[6:0]
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
RM0351
1
0
0
0
1
1
MSICAL[7:0]
x
x
x
x
x
x
SWS
SW
[1:0]
[1:0]
0
0
0
0
0
0
PLL
PLLM
SRC
[2:0]
[1:0]
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
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