| [31:7] | Reserved | 0 | — | 
| 6 | DDRB_IDC_RBEMPTY | 0 | When set to "1", indicates that the read
                     buffer of the IDC master does not have valid data. | 
| 5 | DDRB_HPD_RBEMPTY | 0 | When set to "1", indicates that the read
                     buffer of the HPDMA master does not have valid data. | 
| 4 | DDRB_HPD_WBEMPTY | 0 | When set to "1", indicates that the write
                     buffer of the HPDMA master does not have valid data. | 
| 3 | DDRB_SW_RBEMPTY | 0 | When set to "1", indicates that the read
                     buffer of the AHB bus matrix master does not have valid data. | 
| 2 | DDRB_SW_WBEMPTY | 0 | When set to "1", indicates that the write
                     buffer of the AHB bus matrix master does not have valid data. | 
| 1 | DDRB_DS_RBEMPTY | 0 | When set to "1", indicates that the read
                     buffer of the DSG master does not have valid data. | 
| 0 | DDRB_DS_WBEMPTY | 0 | When set to "1", indicates that the write
                     buffer of the DSG master does not have valid data. |