bit name 

 bit abbreviation 

 Address 

 bit 

 Priority number 
 (for scroll screen) 

 N0PRIN 

 1800F8H 

 2-0 

 For NBG0 (or RBG1) 

 Priority number 
 (for scroll screen) 

 N1PRIN 

 1800F8H 

 10-8 

 For NBG1 (or EXBG) 

 Priority number 
 (for scroll screen) 

 N2PRIN 

 1800FAH 

 2-0 

 For NBG2 

 Priority number 
 (for scroll screen) 

 N3PRIN 

 1800FAH 

 10-8 

 For NBG3 

 Priority number 
 (for scroll screen) 

 R0PRIN 

 1800FCH 

 2-0 

 for RBG0 

 Color calculation rate (for sprites) 

 S0CCRT 

 180100H 

 4-0 

 Sprite Register 0 

 Color calculation ratio (for sprites) 

 S1CCRT 

 180100H 

 12-8 

 Sprite register 1 

 Color calculation ratio (for sprites) 

 S2CCRT 

 180102H 

 4-0 

 Sprite register 2 

 Color calculation ratio (for sprites) 

 S3CCRT 

 180102H 

 12-8 

 Sprite register 3 

 Color calculation ratio (for sprites) 

 S4CCRT 

 180104H 

 4-0 

 Sprite register 4 

 Color calculation ratio (for sprites) 

 S5CCRT 

 180104H 

 12-8 

 Sprite register 5 

 Color calculation ratio (for sprites) 

 S6CCRT 

 180106H 

 4-0 

 Sprite register 6 

 Color calculation ratio (for sprites) 

 S7CCRT 

 180106H 

 12-8 

 Sprite register 7 

 Color calculation ratio (for scroll screen) 

 N0CCRT 

 180108H 

 4-0 

 For NBG0 (or RBG1) 

 Color calculation ratio (for scroll screen) 

 N1CCRT 

 180108H 

 12-8 

 NBG1 (or EXBG) 

 Color calculation ratio (for scroll screen) 

 N2CCRT 

 18010AH 

 4-0 

 For NBG2 

 Color calculation ratio (for scroll screen) 

 N3CCRT 

 18010AH 

 12-8 

 For NBG3 

 Color calculation ratio (for scroll screen) 

 R0CCRT 

 18010CH 

 4-0 

 for RBG0 

 Color calculation ratio (for scroll screen) 

 LCCCRT 

 18010EH 

 4-0 

 For LNCL 

 Color calculation ratio (for scroll screen) 

 BKCCRT 

 18010EH 

 12-8 

 For BACK 

 Color Offset Enable 

 N0COEN 

 180110H 

 0 

 For NBG0 (or RBG1) 

 Color offset enable 

 N1COEN 

 180110H 

 1 

 NBG1 (or EXBG) 

 Color offset enable 

 N2COEN 

 180110H 

 2 

 For NBG2 

 Color offset enable 

 N3COEN 

 180110H 

 3 

 For NBG3 

 Color offset enable 

 R0COEN 

 180110H 

 4 

 for RBG0 

 Color offset enable 

 BKCOEN 

 180110H 

 5 

 For BACK 

 Color offset enable 

 SPCOEN 

 180110H 

 6 

 For sprites 

 Color Offset Select 

 N0COSL 

 180112H 

 0 

 For NBG0 (or RBG1) 

 Color Offset Select 

 N1COSL 

 180112H 

 1 

 NBG1 (or EXBG) 

 Color Offset Select 

 N2COSL 

 180112H 

 2 

 For NBG2 

 Color Offset Select 

 N3COSL 

 180112H 

 3 

 For NBG3 

 Color Offset Select 

 R0COSL 

 180112H 

 4 

 for RBG0 

 Color Offset Select 

 BKCOSL 

 180112H 

 5 

 For BACK 

 Color Offset Select 

 SPCOSL 

 180112H 

 6 

 For sprites