Return to previous page ｜ Return to menu ｜ Go to next page

Horizontal resolution bit : Horizontal resolution bit (HRESO2 to HRESO0), bits 2 to 0
Specifies the horizontal resolution when displaying a picture on the TV screen. 

 320 pixels  
 352 pixels  
 640 pixels  
 704 pixels  
 320 pixels  
 352 pixels  
 640 pixels  
 704 pixels  
HRES02
HRESO1
HRESO0 
 Horizontal resolution 
 Graphic mode 
 Displayable 
 Monitor 
0
0
0
 
 Normal 
 Graphic A 
 NTSC system or 
 PAL system TV 
0
0
1
 
 Normal 
 Graphic B 
0
1
0
 
 High-Res 
 Graphic A 
0
1
1
 
 High-Res 
 Graphic B 
1
0
0
 
 Special 
 Graphic A 
 31 kHz monitor 
1
0
1
 
 Dedicated normal 
 Graphic B 
 High-definition monitor 
1
1
0
 
 High resolution 
 Graphic A 
 31 kHz monitor 
1
1
1
 
 High-resolution 
 Graphic B 
 High-definition monitor

If you specify dedicated high-resolution graphic A or dedicated high-resolution graphic B, you must set other registers as determined. Refer to “ Dedicated high-resolution graphic mode ” in “ 2.1 TV screen mode ”.
⿟ Be sure to reset VDP2 when switching the TV screen mode from the dedicated monitor mode to the normal mode or high-resolution mode.

Return to previous page ｜ Return to menu ｜ Go to next page