| Address | Size | Data content | explanation |
|---|---|---|---|
| 0x25A00400 | 4B | System Info. Table Pointer | System Info. Table start address (440h) |
| 0x25A00404 | 4B | Host Interface Work Pointer | Start address of Host Interface Work (700h) |
| 0x25A00408 | 4B | Sound Area Map CRNT Work Pointer | Sound Area Map CRNT Work start address (500h) |
| 0x25A0040C | 4B | Tool Interface Work Pointer | Start address of Tool Interface Work (600h) |
| 0x25A00410 | 1B | DSP Program load flag | bit7=0: no data 1: DSP program load complete |
| 0x25A00411 | 1B | reserved | - |
| 0x25A00412 | 4B | System Interface Work Pointer | System Interface Work start address (480h) |
| 0x25A00416 | 2B | Sound Driver Error Status | Sound Driver Error Status Bit Map |
| 0x25A00418 | 2B | Hard Check Status | Area to store Hard Check return status |
| 0x25A0041A | 2B | Command history offset address | Write pointer for sound control command history (800h-FFFh) |
| 0x25A0041C | 4B | reserved | - |
| 0x25A00420 | 4B | 68000 Error Status Bit Map | Sound Driver, CPU instruction Error Status bitmap |
| 0x25A00424 | 4B | System Interface Work Pointer | Start address of System Interface Work (copy of 412h:for SH) |
| 0x25A00428 | 24B | reserved | - |