CH0=RESERVED, CH8=RESERVED, CH6=RESERVED, CH4=RESERVED, CH7=RESERVED, CH3=RESERVED, CH2=RESERVED, CH9=RESERVED, CH5=RESERVED, CH1=RESERVED
Channel Request Mask Clear
| CH0 | Channel 0 Request Mask Disable. 0 (RESERVED): No effect. 1 (DISABLED): Enable DMA Channel 0 peripheral data requests. |
| CH1 | Channel 1 Request Mask Disable. 0 (RESERVED): No effect. 1 (DISABLED): Enable DMA Channel 1 peripheral data requests. |
| CH2 | Channel 2 Request Mask Disable. 0 (RESERVED): No effect. 1 (DISABLED): Enable DMA Channel 2 peripheral data requests. |
| CH3 | Channel 3 Request Mask Disable. 0 (RESERVED): No effect. 1 (DISABLED): Enable DMA Channel 3 peripheral data requests. |
| CH4 | Channel 4 Request Mask Disable. 0 (RESERVED): No effect. 1 (DISABLED): Enable DMA Channel 4 peripheral data requests. |
| CH5 | Channel 5 Request Mask Disable. 0 (RESERVED): No effect. 1 (DISABLED): Enable DMA Channel 5 peripheral data requests. |
| CH6 | Channel 6 Request Mask Disable. 0 (RESERVED): No effect. 1 (DISABLED): Enable DMA Channel 6 peripheral data requests. |
| CH7 | Channel 7 Request Mask Disable. 0 (RESERVED): No effect. 1 (DISABLED): Enable DMA Channel 7 peripheral data requests. |
| CH8 | Channel 8 Request Mask Disable. 0 (RESERVED): No effect. 1 (DISABLED): Enable DMA Channel 8 peripheral data requests. |
| CH9 | Channel 9 Request Mask Disable. 0 (RESERVED): No effect. 1 (DISABLED): Enable DMA Channel 9 peripheral data requests. |