|15||Cursor Address (Low)||00000000||0
|-
|16||Light Pen Address (High)||xx000000||||Read Only. On CRTC1, bit6 of Status register goes to 0 when R16 is read
|-
|17||Light Pen Address (Low)||00000000||||Read Only. On CRTC1, bit6 of Status register goes to 0 when R17 is read
|-
|}