Graphics Interface Module - Siemens SIMATIC PC RI25/45 Technical Description

2.4

Graphics Interface Module

Brief Description The graphics interface module of the motherboard is a planar PCI
implementation; that is, the SVGA-LCD controller Cirrus Logic GD7543 is
located on the board and connected to the PCI bus. Its refresh memory has a
backup capacity of 1 MB which cannot be upgraded.
Supported Two mode types are supported:
Resolutions
Standard Modes
The CL-GD754X VGA BIOS supports all the standard VGA modes listed
below:
Mode No. VESA Colors
(hex) No.
00/01 — 16/256K
00*/01* — 16/256K
00+/01+ — 16/256K
02/03 — 16/256K
02*/03* — 16/256K
02+/03+ — 16/256K
04/05 — 4/256K
6 — 2/256K
07* — mono
07+ — mono
0D — 16/256K
0E — 16/256K
0F — mono
10 — 16/256K
11 — 2/256K
12 — 16/256K
13 — 256/256K
*EGA compatible modes
SIMATIC PC RI25/45, Technical Description
C79000-G7076-C808-01
standard modes and
extended modes
Characters Characters
x per
line cell
40x25 8x8
40x25 8x14
40x25 9x16
80x25 8x8
80x25 8x14
80x25 9x16
40x25 8x8
80x25 8x8
80x25 9x14
80x25 9x16
40x25 8x8
80x25 8x8
80x25 8x14
80x25 8x14
80x30 8x16
80x30 8x16
40x25 8x8
Pixels Display Horizontal
mode scan
frequency
kHz
320x200 text 31.5
320x350 text 31.5
360x400 text 31.5
640x200 text 31.5
640x350 text 31.5
720x400 text 31.5
320x200 graphics 31.5
640x200 graphics 31.5
720x350 text 31.5
720x400 text 31.5
320x200 graphics 31.5
640x200 graphics 31.5
640x350 graphics 31.5
640x350 graphics 31.5
640x480 graphics 31.5
640x480 graphics 31.5
320x200 graphics 31.5
Motherboard
Vertical
scan
frequency
Hz
70
70
70
70
70
70
70
70
70
70
70
70
70
70
60
60
60
2-5