2-5
SIMATIC PC RI25/45, Technical Description
C79000-G7076-C808-01
2.4
Graphics Interface Module
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.
Two mode types are supported:
standard modes and
extended modes
The CL-GD754X VGA BIOS supports all the standard VGA modes listed
below:
Mode No.
(hex)
VESA
No.
Colors
Characters
x
line
Characters
per
cell
Pixels
Display
mode
Horizontal
scan
frequency
kHz
Vertical
scan
frequency
Hz
00/01
—
16/256K
40x25
8x8
320x200
text
31.5
70
00*/01*
—
16/256K
40x25
8x14
320x350
text
31.5
70
00+/01+
—
16/256K
40x25
9x16
360x400
text
31.5
70
02/03
—
16/256K
80x25
8x8
640x200
text
31.5
70
02*/03*
—
16/256K
80x25
8x14
640x350
text
31.5
70
02+/03+
—
16/256K
80x25
9x16
720x400
text
31.5
70
04/05
—
4/256K
40x25
8x8
320x200
graphics
31.5
70
6
—
2/256K
80x25
8x8
640x200
graphics
31.5
70
07*
—
mono
80x25
9x14
720x350
text
31.5
70
07+
—
mono
80x25
9x16
720x400
text
31.5
70
0D
—
16/256K
40x25
8x8
320x200
graphics
31.5
70
0E
—
16/256K
80x25
8x8
640x200
graphics
31.5
70
0F
—
mono
80x25
8x14
640x350
graphics
31.5
70
10
—
16/256K
80x25
8x14
640x350
graphics
31.5
70
11
—
2/256K
80x30
8x16
640x480
graphics
31.5
60
12
—
16/256K
80x30
8x16
640x480
graphics
31.5
60
13
—
256/256K
40x25
8x8
320x200
graphics
31.5
60
*EGA compatible modes
Brief Description
Supported
Resolutions
Standard Modes
Motherboard