GMS84512 Datasheet, PDF (72/123 Pages) Hynix Semiconductor – 8-BIT SINGLE CHIP MICROCOMPUTER

GMS 84512 / 84524
3.8.6 OSD Display Position Register( HDP1¡-HDP3, VDP1¡-VDP3)
OSD Display Position Register defines horizontal, vertical position of screen every each display
line.
HDPi, VDPi define display position of i-line first character. (only I= 1,2,3)
<Note> The value of HDPi is to be over four, the value of VDPi don't have to be included
in domain of previous line.
OSD HORIZONTAL POSITION REGISTER
HDP1
<00F0_H>
HDP2
<00F1_H>
HDP3
<00F2_H>
¦¡
¦¡
W
W
W
W
W
W
7
6
5
4
3
2
1
0
¦¡
¦¡ 1HP5 1HP4 1HP3 1HP2 1HP1 1HP0
Initial Value(at Reset)
[ --00 0000 ]
Each Line Horizontal Position Definition
HSi = To ¡¿ { 4 ¡¿ ( HDPi) £« 10 }
[ To = OSD Clock Period, i = 1, 2, 3 ]
OSD VERTICAL POSITION REGISTER
VDP1
<00F3_H>
VDP2
<00F4_H>
VDP3
<00F5_H>
¦¡
W
W
W
W
W
W
W
7
6
5
4
3
2
1
0
¦¡ 1VP6 1VP5 1VP4 1VP3 1VP2 1VP1 1VP0
Initial Value (at Reset)
[ -000 0000 ]
Each Line Vertical Position Definition
VSi = 2 ¡¿ H ¡¿ ( VDPi )
[ H orizontal Synchronous Signal Period,,
i = 1, 2, 3 ]
l Horizontal Display Position ( HSi )
HSi = To ¡¿ { 4 ¡¿ ( HDPi ) £« 10 }
[ To = OSD Clock Period, i = 1, 2, 3 ]
l Vertical Display Position ( VSi )
HS1
VS2
HS2
Fuzzy ON
VS1
CH 23
VS3
VSi = 2 ¡¿ H ¡¿ ( VDPi )
[H = Horizontal Synchronous Signal Period, i = 1, 2, 3 ]
HS3
ABCD EFG HIJK
FIG. 3.8.5 CRT Screen and Display Position
3 - 47