AHB Peripheral Clock enable register (CRM_AHBEN)
| DMA1EN | DMA1 clock enable |
| DMA2EN | DMA2 clock enable |
| SRAMEN | SRAM interface clock enable |
| FLASHEN | FLASH clock enable |
| CRCEN | CRC clock enable |
| XMCEN | XMC clock enable |
| SDIO1EN | SDIO1 clock enable |
| SDIO2EN | SDIO2 clock enable |
| EMACEN | EMACEN clock enable |
| EMACTXEN | EMACEN Tx clock enable |
| EMACRXEN | EMACEN Rx clock enable |
| EMACPTPEN | EMACPTP clock enable |