IBM 72H9623, User Manual

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A12
The monitor has 18 memory locations for display modes, 14 of which are factory
preset to popular video modes.
Factory Preset Timing Signal Chart
Video Memory Modes
Video
Sync
B
A
C F
D E
H
O
R
I
Z
O
N
T
A
L
V
E
R
T
I
C
A
L
(Text)
Mode1 Mode2 Mode3 Mode4 Mode5 Mode6 Mode7 Symbol
Polarity + - - - - - +
Frequency kHz 31.468 31.468 31.469 35.00 37.861 37.50 35.156
Total Period pixels 800 900 800 864 832 840 1024 E
Data Period pixels 640 720 640 640 640 640 800 A
Blanking pixels 160 180 160 224 192 200 224 B
Front Porch pixels 16 17 16 64 24 16 24 C
Pulse Width pixels 96 108 96 64 40 64 72 D
Back Porch pixels 48 55 48 96 128 120 128 F
Polarity - + - - - - +
Frequency Hz 70 70 60 66.67 72.8 75.0 56.25
Total Period lines 449 449 525 525 520 500 625 E
Data Period lines 350 400 480 480 480 480 600 A
Blanking lines 99 49 45 45 40 20 25 B
Front Porch lines 37 13 10 3 9 1 1 C
Pulse Width lines 2 2 2 3 3 3 2 D
Back Porch lines 60 34 33 39 28 16 22 F
Resolution
640 720 640 640 640 640 800
x350
x400
x480 x480 x480 x480 x600
Recall YES YES YES YES YES YES YES
Note : Timings are as detailed in VESA “Display Monitor Timing Specification”. Version 1.0,
Revision 0.7, Dated 12/18/96.