1. Align peripheral data by V-BLANK-IN
   
2. Calculate parameters for sprites and scroll planes controlled by peripherals
   
3. 3D calculation etc.
   
4. Draw sprites and polygons
   
5. Display

The purpose of optimizing the peripheral data collection time is to collect peripheral data at a timing as close as possible to V-BLANK-IN. In other words, start collecting peripheral data as close to V-BLANK-IN as possible, and minimize the time from peripheral data collection until SH-2 acquires the peripheral data. Figure 3.5 shows an overview of the peripheral data collection time optimization operation.

Figure 3.5: Overview of peripheral data collection time optimization