Video Memory Modes; Factory Preset Timing Signal Chart - IBM 04N7322 Owner's Manual

3828TUO032A-1 99.5.31 1:35 PM ˘ ` A11

Video Memory Modes

Factory Preset Timing Signal Chart

Video
Sync
Polarity
H
Frequency
O
R
Total Period
I
Data Period
Z
O
Blanking
N
Front Porch
T
A
Pulse Width
L
Back Porch
Polarity
V
Frequency
E
R
Total Period
T
Data Period mS
I
C
Blanking
A
Front Porch mS
L
Pulse Width mS
Back Porch
Resolution
Recall
B
C
F
D
Mode1 Mode2 Mode3
- -
kHz 31.47 37.5
uS 31.78 26.667 23.111
uS 25.422 20.317 17.778
uS 6.356 6.349
uS 0.636 0.508
uS 3.813 2.032
uS 1.907 3.810
+ -
Hz 59.94 75.0
mS 16.683 13.333 11.764
15.253 12.800 11.093
mS 1.430 0.533
0.318 0.027
0.064 0.080
mS 1.049 0.427
640 640
x 480 x 480
YES YES
A11
A
E
Mode4 Mode5
- + -
43.3 46.875 48.36
21.333 20.677
16.162 15.754
5.333 5.172 4.923
1.556 0.323 0.369
1.556 1.616 2.092
2.222 3.232 2.462
- + -
85.0 75.0 60.0
13.333 16.666
12.80 15.880
0.670 0.533 0.786
0.023 0.021 0.062
0.069 0.064 0.124
0.578 0.448 0.600
640 800 1024
x 480 x 600 x 768
YES YES YES
E
A
B
C
D
F
E
A
B
C
D
F