FLASH control register
| LOCK | configuration lock bit  |  
| PG | program enable bit  |  
| SER | sector erase request  |  
| BER | erase request  |  
| PSIZE | program size  |  
| FW | write forcing control bit  |  
| START | bank or sector erase start control bit  |  
| SNB | sector erase selection number  |  
| CRC_EN | CRC control bit  |  
| EOPIE | end-of-program interrupt control bit  |  
| WRPERRIE | write protection error interrupt enable bit  |  
| PGSERRIE | programming sequence error interrupt enable bit  |  
| STRBERRIE | strobe error interrupt enable bit  |  
| INCERRIE | inconsistency error interrupt enable bit  |  
| OPERRIE | write/erase error interrupt enable bit  |  
| RDPERRIE | read protection error interrupt enable bit  |  
| RDSERRIE | secure error interrupt enable bit  |  
| SNECCERRIE | ECC single correction error interrupt enable bit  |  
| DBECCERRIE | ECC double detection error interrupt enable bit  |  
| CRCENDIE | end of CRC calculation interrupt enable bit  |  
| CRCRDERRIE | CRC read error interrupt enable bit When CRCRDERRIE1 bit is set to 1, an interrupt is generated when a protected area (PCROP or secure-only) has been detected during the last CRC computation on bank 1. CRCRDERRIE1 can be programmed only when LOCK1 is cleared to 0.  |