GMS84512 Datasheet, PDF (73/123 Pages) Hynix Semiconductor – 8-BIT SINGLE CHIP MICROCOMPUTER

GMS 84512 / 84524
3.8.7 OSD output Control Register( OSDCON1, OSDCON2 )
l OSDCON1 ( 00F9_H )
OSD output control register 1( OSDCON1 )defines background and edge color (BB, BG, BR)
and is enable/disable OSD output(OSDON) and defines function of output port. (OY, OB, OG, OR)
OSD OUTPUT & BACKGROUND CONTROL REGISTER
OSDCON1
<00F9_H>
W
W
W
7
6
5
OY OB OG
R53/ Y Selection
0 : R53
1:Y
R52/ B Selection
0 : R52
1:B
R51/ G Selecton
0 : R51
1:G
W
W
W
W
W
4
3
2
1
0
OR OSDON BB BG BR
Initial Value (at Reset)
[ 0000 0000 ]
Background and Edge Color Selection
OSD Output Control
0 : Disable
1 : Enable
R50/ R Selection
0 : R50
1:R
l OSDCON2 ( 00FA_H )
OSD output control register 2 (OSDCON2) defines the polarity of OSD output(PY,PB,PG,PR) and
selects the polarity of input HD, VD(PH,PV) and defines background domain(BCOL) and defines
the type of OSD oscillation (OSC).
OSD I/O POLARITY & OSCILLATION CONTROL REGISTER
W
W
W
W
W
W
W
W
7
6
5
4
3
2
1
0
OSDCON2
<00FA_H>
OSC BCOL PH PV PY PB PG PR
Initial value (At Reset)
[ 0000 0000 ]
H-sync V-sync
B polarity
R polarity
Polarity Polarity _Ypolarity
G polarity
Background domain determination
0 : Line area
1 : Full screen area
Polarity control
0 : Active low
1 : Active high
Oscillation type
0 : Always (Full screen)
1 : Not Always ( Oscillation where only displayed)
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