WECRM=0, DMAS=00, CDSS=0, CDTL=0, EMODE=00, D3CD=0, DTW=00, LCTL=0, WECINS=0, IABG=0, WECINT=0, RWCTL=0, CREQ=0, SABGREQ=0
Protocol Control Register
| LCTL | LED Control 0 (0): LED off 1 (1): LED on |
| DTW | Data Transfer Width 0 (00): 1-bit mode 1 (01): 4-bit mode 2 (10): 8-bit mode |
| D3CD | DAT3 as Card Detection Pin 0 (0): DAT3 does not monitor card Insertion 1 (1): DAT3 as card detection pin |
| EMODE | Endian Mode 0 (00): Big endian mode 1 (01): Half word big endian mode 2 (10): Little endian mode |
| CDTL | Card Detect Test Level 0 (0): Card detect test level is 0, no card inserted 1 (1): Card detect test level is 1, card inserted |
| CDSS | Card Detect Signal Selection 0 (0): Card detection level is selected (for normal purpose) 1 (1): Card detection test level is selected (for test purpose) |
| DMAS | DMA Select 0 (00): No DMA or simple DMA is selected 1 (01): ADMA1 is selected 2 (10): ADMA2 is selected |
| SABGREQ | Stop At Block Gap Request 0 (0): Transfer 1 (1): Stop |
| CREQ | Continue Request 0 (0): No effect 1 (1): Restart |
| RWCTL | Read Wait Control 0 (0): Disable read wait control, and stop SD clock at block gap when SABGREQ bit is set. 1 (1): Enable read wait control, and assert read wait without stopping SD clock at block gap when SABGREQ bit is set. |
| IABG | Interrupt At Block Gap 0 (0): Disabled 1 (1): Enabled |
| WECINT | Wakeup Event Enable On Card Interrupt 0 (0): Disabled 1 (1): Enabled |
| WECINS | Wakeup Event Enable On SD Card Insertion 0 (0): Disabled 1 (1): Enabled |
| WECRM | Wakeup Event Enable On SD Card Removal 0 (0): Disabled 1 (1): Enabled |