| Field Name | Bits | Type | Reset Value | Description |
| Enable_Compression | 31 | rwNormal read/write | 0 | Enable Compression (MM2S), decompression (S2MM). Only effective if channel has (de)compression enabled |
| D2_Zero_Before | 30:27 | rwNormal read/write | 0 | Add this many zero wraps of dim1 before dim2 (MM2S only) |
| D2_Wrap | 26:17 | rwNormal read/write | 0 | Wrap after this many dim2 steps and increment dim3 by a step. 0=do not wrap |
| D2_Stepsize | 16:0 | rwNormal read/write | 0 | Offset each step for dimension 2 (number of 32-bit words) (actual -1); Range [1:128k] |