bit name 

 bit abbreviation 

 Address 

 bit 

 TV screen display 

 DISP 

 180000H 

 15 

 Border Color Mode 

 BDCLMD 

 180000H 

 8 

 Interlace Mode 

 LSMD 

 180000H 

 7,6 

 Vertical resolution 

 VRESO 

 180000H 

 5,4 

 Horizontal resolution 

 HRESO 

 180000H 

 2-0 

 External latch enable 

 EXLTEN 

 180002H 

 9 

 External Sync Enable 

 EXSYEN 

 180002H 

 8 

 Image display area selection 

 DASEL 

 180002H 

 1 

 External screen enable 

 EXBGEN 

 180002H 

 0 

 External latch flag 

 EXLTFG 

 180004H 

 9 

 External sync flag 

 EXSYFG 

 180004H 

 8 

 V blank flag 

 VBLANK 

 180004H 

 3 

 H Blank Flag 

 HBLANK 

 180004H 

 2 

 Scan Field Flag 

 ODD 

 180004H 

 1 

 TV system flag 

 PAL 

 180004H 

 0 

 VRAM size 

 VRAMSZ 

 180006H 

 15 

 Version number 

 VER 

 180006H 

 3-0 

 H counter value 

 HCT 

 180008H 

 9-0 

 V counter value 

 VCT 

 18000AH 

 9-0 

 Color RAM Coefficient Table Enable 

 CRKTE 

 18000EH 

 15 

 Color RAM mode 

 CRMD 

 18000EH 

 13,12 

 VRAM mode 

 VRAMD 

 18000EH 

 8 

 For VRAM-A 

 VRAM mode 

 VRBMD 

 18000EH 

 9 

 VRAM-B 

 Rotation data bank specification 

 RDBSA0 

 18000EH 

 1,0 

 For VRAM-A0 (or VRAM-A) 

 Specify rotation data bank 

 RDBSA1 

 18000EH 

 3,2 

 For VRAM-A1 

 Specify rotation data bank 

 RDBSB0 

 18000EH 

 5,4 

 For VRAM-B0 (or VRAM-B) 

 Specify rotation data bank 

 RDBSB1 

 18000EH 

 7,6 

 For VRAM-B1