2.21.5
Video Mode Ta bles
The LBC- Plus video sec tion sup ports a number of stan dard and ex tended VGA modes. The fol low -
ing ta bles ex tracted from the C&T 65540/65545 da ta book show the video modes along with the re -
quired amount of RAM.
Stan dard Video Modes - VGA Stan dard
Mode
#
(Hex)
Dis play
Mode
Col ors
Text
Dis play
Font
Size
Pixel
Reso lu tion
Dot
Clock
(MHz)
Hori zon tal
Fre quency
(KHz)
Ver ti cal
Fre quency
(Hz)
Video
Memory
CRT
CODE
0+, 1+
Text
16
40 X 25
40 X 25
40 X 25
9 X 16
8 X 14
8 X 8
360 X 400
320 X 350
320 X 200
28.322
25.175
25.175
31.5
70
256KB
A,B,C
2+, 3+
Text
16
80 X 25
80 X 25
80 X 25
9 X 16
8 X 14
8 X 8
720 X 400
640 X 350
620 X 200
28.322
25.175
25.175
31.5
70
256KB
A,B,C
4
Graph ics
4
40 X 25 8 X 8
320 X 200
25.175
31.5
70
256KB
A,B,C
5
Graphics
4
40 X 25 8 X 8
320 X 200
15.175
31.5
70
256KB
A,B,C
6
Graphics
2
80 X 25 8 X 8
640 X 200
25.175
31.5
70
256KB
A,B,C
7+
Text
Mono
80 X25
80 X 25
80 X 25
9 X 16
9 X 14
9 X 8
720 X 400
720 X 350
720 X 350
28.322
31.5
70
256KB
A,B,C
D
Planar
16
40 X 25 8 X 8
320 X 200
25.175
31.5
70
256KB
A,B,C
E
Planar
16
80 X 25 8 X 8
640 X 200
25.175
31.5
70
256KB
A,B,C
F
Planar
Mono 80 X 25 8 X 14 640 X 350
25.175
31.5
70
256KB
A,B,C
10
Planar
16
80 X 25 8 X 14 640 X 350
25.175
31.5
70
256KB
A,B,C
11
Planar
2
80 X 30 8 X 16 640 X 480
25/175
31.5
60
256KB
A,B,C
12
Planar
16
80 X 30 8 X 16 640 X 480
25.175
31.5
60
256KB
A,B,C
13
Packed
Pixel
256
40 X 25 8 X 8
320 X 200
25.175
31.5
70
256KB
A,B,C
CRT Codes
A - PS/2 Fixed Frequency analog CRT or equivalent (31.5/35.5 Khz Horizontal Frequency Specification)
B - Multi-Frequency CRT Monitor (37.5 Khz minimum Horizontal Frequency Specification) (NEC MultiSync 3D or equivalent)
C - Multi-Frequency High-Performance CRT Monitor (48.5 KHZ minimum Horizontal Frequency Specification) MultiSyc 5D or equivalent
991206
OPERATIONS MANUAL LBC-Plus
Page 2 - 27
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