ST STM32L4x6 User Manual

Reset and clock control (RCC) RM0351
210/1693 DocID024597 Rev 3
Bit 16 PLLSAI2PEN: SAI2PLL PLLSAI2CLK output enable
Set and reset by software to enable the PLLSAI2CLK output of the SAI2PLL.
In order to save power, when the PLLSAI2CLK output of the SAI2PLL is not used, the value
of PLLSAI2PEN should be 0.
0: PLLSAI2CLK output disable
1: PLLSAI2CLK output enable
Bit 15 Reserved, must be kept at reset value.
Bits 14:8 PLLSAI2N[6:0]: SAI2PLL multiplication factor for VCO
Set and cleared by software to control the multiplication factor of the VCO. These bits can be
written only when the SAI2PLL is disabled.
VCOSAI2 output frequency = VCOSAI2 input frequency x PLLSAI2N
with 8 =< PLLSAI2N =< 86
0000000: PLLSAI2N = 0 wrong configuration
0000001: PLLSAI2N = 1 wrong configuration
...
0000111: PLLSAI2N = 7 wrong configuration
0001000: PLLSAI2N = 8
0001001: PLLSAI2N = 9
...
1010101: PLLSAI2N = 85
1010110: PLLSAI2N = 86
1010111: PLLSAI2N = 87 wrong configuration
...
1111111: PLLSAI2N = 127 wrong configuration
Caution: The software has to set correctly these bits to ensure that the VCO output
frequency is between 64 and 344 MHz.
Bits 7:0 Reserved, must be kept at reset value.

ST STM32L4x6 Specifications

General

Brand	ST
Model	STM32L4x6
Category	Microcontrollers
Language	English