The wiki has been upgraded to MediaWiki 1.43. The wiki's theme is still being adapted to work with the new version, and may appear broken for the time being. --RanAS
Two-Phase Access
From SnesLab
Two-Phase Access is when both the SA-1 and 5A22 access the ROM.
Reference
- Figure 2.2.1.3 on page 1-2-3 of Book II of the official Super Nintendo development manual