Specifications

Introduction
1–15
Table 1–6 Supported CRT Video Modes—High Refresh
Mode
Display
Mode Colors Text Font Pixels
Clock
(MHz)
Horiz
(KHz)
Vert
(Hz) Mem. CRT
12 Planar 16 80x30 8x16 640x480 31.500 37.5 75 256K b, c
30 8-bit Linear 256 80x30 8x16 640x480 31.500 37.5 75 256K c
79 Packed Pixel 256 80x30 8x16 640x480 31.500 37.5 75 512K c
6A,70 Planar 16 100x37 8x16 800x600 49.500 46.9 75 512K c
32 8-bit Linear 256 100x37 8x16 800x600 49.500 46.9 75 1M c
7C Packed Pixel 256 100x37 8x16 800x600 49.500 46.9 75 1M c
CRT Support for Extended Resolution Modes:
a PS/2 fixed frequency analog CRT monitor or equivalent. 31.5/35.5 KHz horizontal frequency..
b Multi-frequency CRT monitor. 37.5 KHz minimum horizontal frequency specification.
c Multi-frequency high-performance CRT monitor. 48.5 KHz minimum horizontal.