21
APPENDIX C
Supported Timing
Ite
m
Standards
Resolution
Dot
Clock
(MHz)
Vertical
Scanning
Frequency
(Hz)
Horizontal
Scanning
Frequency
(kHz)
Sync
Polarity or
composite
sync (H/V)
Operatin
g Mode
1 NEC PC98 640x400 25.20 70.15 31.50 -/- A/D
2 NEC PC98 640x400 21.05 56.42 24.83 -/- A
3 MAC 13”
mode 640x480 30.24 66.67 35.00 -/- A/G
4 MAC 16”
mode 832x624 57.28 74.55 49.73 -/- A/G
5 MAC 17”
mode 1024x768 80.00 75.02 60.24 -/- A/G
6 VGA 640x350 25.18 70.09 31.47 +/- A/D
7 VGA 640x400 25.18 70.09 31.47 -/+ A
8 VGA 640x480 25.18 59.94 31.47 -/- A/D
9 VESA 640x480 31.50 72.81 37.86 -/- A/D
10 VESA 640x480 31.50 75.00 37.50 -/- A/D
11 VESA 800x600 36.00 56.25 35.16 +/+ A/D
12 SVGA 800x600 40.00 60.32 37.88 +/+ A/D
13 VESA 800x600 50.00 72.19 48.08 +/+ A/D
14 VESA 800x600 49.50 75.00 46.88 +/+ A/D
15 VGA 720x400 28.32 70.09 31.47 -/+ A
16 XGA 1024x768 65.00 60.00 48.36 -/- A/D
17 VESA 1024x768 75.00 70.07 56.48 -/- A/D
18 VESA 1024x768 78.75 75.03 60.02 +/+ A/D
19 1024x768 71.64 66.13 53.96 +/+ A/D
20 VESA 1152x864 108.00 75.00 67.50 +/+ A/D
21 1152x870 100 75.06 68.68 -/- A/D
22 VESA 1280x960 108.0 60.0 60.0 +/+ A/D
23 VESA 1280x1024 108.0 60.02 63.98 +/+ A/D
24 VESA 1280x1024 127.0 69.85 74.88 +/+ A/D
25 VESA 1280x1024 135.0 75.03 79.98 +/+ A/D
26 SUN 1024x768 64.13 59.98 48.29 H+V A
27 SUN 1024x768 74.25 70.04 56.59 H+V A

* A=Analog Mode; D=Digital Mode (Optional); G=Sync On Green Mode

* Once a mode is optimized, 50

there is no need to make any further adjustment as long as the VGA card remains unchanged.

* Specifications are subject to change without notice.