RMVFSEC=B_0x0, MSISEC=B_0x0, PRESCSEC=B_0x0, ICLKSEC=B_0x0, PLL3SEC=B_0x0, HSI48SEC=B_0x0, SYSCLKSEC=B_0x0, PLL1SEC=B_0x0, PLL2SEC=B_0x0, LSESEC=B_0x0, LSISEC=B_0x0, HSESEC=B_0x0, HSISEC=B_0x0
RCC secure configuration register
| HSISEC | HSI clock configuration and status bit security This bit is set and reset by software. 0 (B_0x0): non secure 1 (B_0x1): secure  |  
| HSESEC | HSE clock configuration bits, status bit and HSE_CSS security This bit is set and reset by software. 0 (B_0x0): non secure 1 (B_0x1): secure  |  
| MSISEC | MSI clock configuration and status bit security This bit is set and reset by software. 0 (B_0x0): non secure 1 (B_0x1): secure  |  
| LSISEC | LSI clock configuration and status bit security This bit is set and reset by software. 0 (B_0x0): non secure 1 (B_0x1): secure  |  
| LSESEC | LSE clock configuration and status bit security This bit is set and reset by software. 0 (B_0x0): non secure 1 (B_0x1): secure  |  
| SYSCLKSEC | SYSCLK clock selection, STOPWUCK bit, clock output on MCO configuration security This bit is set and reset by software. 0 (B_0x0): non secure 1 (B_0x1): secure  |  
| PRESCSEC | AHBx/APBx prescaler configuration bits security This bit is set and reset by software. 0 (B_0x0): non secure 1 (B_0x1): secure  |  
| PLL1SEC | PLL1 clock configuration and status bit security This bit is set and reset by software. 0 (B_0x0): non secure 1 (B_0x1): secure  |  
| PLL2SEC | PLL2 clock configuration and status bit security Set and reset by software. 0 (B_0x0): non secure 1 (B_0x1): secure  |  
| PLL3SEC | PLL3 clock configuration and status bit security This bit is set and reset by software. 0 (B_0x0): non secure 1 (B_0x1): secure  |  
| ICLKSEC | Intermediate clock source selection security This bit is set and reset by software. 0 (B_0x0): non secure 1 (B_0x1): secure  |  
| HSI48SEC | HSI48 clock configuration and status bit security This bit is set and reset by software. 0 (B_0x0): non secure 1 (B_0x1): secure  |  
| RMVFSEC | Remove reset flag security This bit is set and reset by software. 0 (B_0x0): non secure 1 (B_0x1): secure  |