AHB Peripheral Clock enable register (RCC_AHBENR)
| DMAEN | DMA1 clock enable |
| DMA2EN | DMA2 clock enable |
| SRAMEN | SRAM interface clock enable |
| FLITFEN | FLITF clock enable |
| FMCEN | FMC clock enable |
| CRCEN | CRC clock enable |
| IOPHEN | IO port H clock enable |
| IOPAEN | I/O port A clock enable |
| IOPBEN | I/O port B clock enable |
| IOPCEN | I/O port C clock enable |
| IOPDEN | I/O port D clock enable |
| IOPEEN | I/O port E clock enable |
| IOPFEN | I/O port F clock enable |
| IOPGEN | I/O port G clock enable |
| TSCEN | Touch sensing controller clock enable |
| ADC12EN | ADC1 and ADC2 clock enable |
| ADC34EN | ADC3 and ADC4 clock enable |