| Special priority Rity mode | Special priority Tier specified contents | color format | least bit value of priority number |
| Mode 0 | Specify for each screen | Palette format or RGB format | Least significant bit of the priority number register Value |
| Mode 1 | Specify for each character | Pallet format or RGB format | Special priority bit value in pattern name data |
| Mode 2 | Specified for each dot Specification | Palette format | Special priority bit in pattern name data = 1, only dots that match the dot color code specified in the special function code will be 1, other than 0 |
| RGB format | Setting prohibited |
∙ When mode 1 or 2 is specified on the scroll screen with the bitmap display format, the special priority bit of the bitmap palette number register is used instead of the special priority bit in the pattern name data.