Decoder Control Register 0
| HLOCK | HLOCK Enable |
| REFFIRST | Reference Field First |
| MV | MPEG-2 Motion Vector Write Enable |
| QUANT | Quantization |
| FILTDIS | De-block Filtering Disable |
| OUTDIS | Disable Decoder Output Picture Writing |
| REFFIELD | Indicates Which Field Should Be Used As Reference |
| FORWMODE | Coding Mode of Forward Reference Picture |
| PICFIELD | Picture Field |
| PICTYPE | Picture Type |
| PICBEN | B Picture Enable |
| PICSTRUCT | Structure of the Current Picture |
| PICMODE | Coding mode of Current Picture |
| RLCEN | RLC Mode Enable |
| DEC_MODE | Decoding Mode |