Technical Specifications
3–3
Table 3–1. Supported CRT Video Modes—Standard VGA
Mode DisplayMode Colors Text Font Pixels Clock(MHz) Horiz(KHz) Vert(Hz)
0+, 1+ Text 16 40x25
40x25
40x25
9x16
8x14
8x8
360x400
320x350
320x200
28.322
25.175
25.175
31.5 70
2+, 3+ Text 16 80x25
80x25
80x25
9x16
8x14
8x8
720x400
640x350
640x200
28.322
25.175
25.175
31.5 70
4 Graphics 4 40x25 8x8 320x2 00 25.175 31.5 70
5 Graphics 4 40x25 8x8 320x2 00 25.175 31.5 70
6 Graphics 2 80x25 8x8 640x2 00 25.175 31.5 70
7+ Text Mono 80x25
80x25
80x25
9x16
9x14
9x8
720x400
720x350
720x350
28.322 31.5 70
D Planar 16 40x25 8x8 320x200 25. 175 31.5 70
E Planar 16 80x25 8x8 640x200 25.175 31.5 70
F Planar Mono 80x25 8x14 640x350 25.175 31.5 70
10 Planar 16 80x25 8x14 640x350 25.175 31.5 70
11 Planar 2 80x30 8x16 640x480 25.175 31.5 60
12 Planar 16 80x30 8x16 640x480 25.175 31.5 60
13 Packed
Pixel 256 40x25 8x8 320x 200 25.175 31.5 70
CRT Support for Standard Video Modes
! PS/2 fixed frequency analog CRT monitor or equivalent. 31.5/35.5 KHz horizontal frequency.
! Multi-frequency CRT monitor. 37.5 KHz minimum horizontal frequency.
! Multi-frequency high-performance CRT monitor. 48.5 KHz minimum horizontal frequency.