參數(shù)資料
型號： 20749
英文描述： Configuring the ?lanSC300 Device＇s Internal CGA Controller for a Specific LCD Panel
中文描述： 配置？lanSC300設(shè)備的內(nèi)部海巡署控制器，用于特定的液晶面板
文件頁數(shù)： 10/26頁
文件大?。?/td> 277K
代理商： 20749
10
Configuring the élanSC300 Device’s Internal CGA Controller for a Specific LCD Panel
CGA Text
The Video Index registers are accessed by writing the
register index to Port 3D4h and then writing or reading
the register data to or from Port 3D5h.
1. Set Video Index 18H = 50h
– Sets up LCD panel type to single screen (bits 7
and 6)
– Sets display type to LCD (bit 4)
2. Set Video Index 00H = HT
3. Set Video Index 01H = HT
4. Set Video Index 02H = 0
5. Set Video Index 03H = 0
6. Set Video Index 04H = VT
7. Set Video Index 05H = 0
8. Set Video Index 06H = VT
9. Set Video Index 07H = VT
10.Set Video Index 08H = 0
11.Set Video Index 09H = MSL
12.Set Video Index 0AH = CS
13.Set Video Index 0BH = CE
14.Set Video Index 0CH = SAH
15.Set Video Index 0DH = SAL
16.Set Video Index 0EH = CAH
17.Set Video Index 0FH = CAL
18.If Color Mapping is going to be used:
– Set Video Indexes 14H–17H and 1CH–1FH
accordingly
– Set Video Index 19H = 10H
19.Set Video Port 3D8H = 08H
– Enable Text mode
20.Set Video Port 3D9H
– Set colors accordingly (see the register descrip-
tion in the élan
TM
SC300 Microcontroller Pro-
grammer’s Reference Manual
)
HGA Graphics
Initially, the Video Index registers are accessed by writ-
ing the register index to Port 3D4h, and then writing or
reading the register data to or from Port 3D5h. This oc-
curs until the controller is switched to HGA mode. After
this occurs, Port 3B4 is used for the index and Port 3B5
is used for the data.
1. Set Video Index 18H = 51h (use Ports 3D4 and
3D5)
– Sets Graphics mode to HGA (from now on use
ports 3B4 and 3B5)
– Sets up LCD panel type to single screen (bits 7
and 6)
– Sets display type to LCD (bit 4)
2. Set Video Index 00H = HT
3. Set Video Index 01H = HT
4. Set Video Index 02H = 0
5. Set Video Index 03H = 0
6. Set Video Index 04H = VT
7. Set Video Index 05H = 0
8. Set Video Index 06H = VT
9. Set Video Index 07H = VT
10.Set Video Index 08H = 0
11.Set Video Index 09H = MSL
12.Set Video Index 0AH = 0
13.Set Video Index 0BH = 0
14.Set Video Index 0CH = SAH
15.Set Video Index 0DH = SAL
16.Set Video Index 0EH = 0
17.Set Video Index 0FH = 0
18.Set Video Port 3BFH = 01H
– Master enable for Graphics mode
19.Set Video Port 3B8H = 0AH
– Enable Graphics mode
– Enable video display
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