| N0SWA | 1800D0H | Bit 4 | Transparency processing For window NBG0 (or RBG1) |
| N1SWA | 1800D0H | Bit 12 | For NBG1 (or EXBG) |
| N2SWA | 1800D2H | Bit 4 | Transparency processing window for NBG2 |
| N3SWA | 1800D2H | Bit 12 | Transparency processing window for NBG3 |
| R0SWA | 1800D4H | Bit 4 | Transparency processing window for RBG0 |
| SPSWA | 1800D4H | Bit 12 | For transparency window sprites |
| CCSWA | 1800D6H | Bit 12 | For color operation window |
| xxSWA | Process |
| 0 | Enable inside SW window |
| 1 | Enable outside SW window |