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Video modes – HP Vectra VL 5/xxx Series 5 User Manual

Page 43

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43

3 Interface Devices and Mass-Storage Drives

S3 Trio 64V2 Graphics Controller Chip

Video Modes

Standard and Enhanced Video Graphics Array (VGA) modes are available.
Hardware acceleration of graphical user interface (GUI) operations is
provided, and acceleration for 8, 16 and 32-bit pixel depths.

The following table details the standard VGA modes which are currently
implemented in the video BIOS. These modes are supported by standard
BIOS functions. The video BIOS (which is mapped contiguously in the
address range C0000h to C7FFFh) contains all the routines required to
configure and access the graphics subsystem.

Standard VGA Modes

Mode No.

Standard

Interface

Type

Resolution

No. of

Colors

Vertical
Refresh

(Hz)

Horizontal

Refresh

(kHz)

Dot Clock

(MHz)

00h

VGA

text

40 x 25 chars

b/w

70

31.5

25.175

00h*

VGA

text

40 x 25 chars

b/w

70

31.5

25.175

00h+

VGA

text

40 x 25 chars

b/w

70

31.5

28.322

01h

VGA

text

40 x 25 chars

16

70

31.5

25.175

01h*

VGA

text

40 x 25 chars

16

70

31.5

25.175

01h+

VGA

text

40 x 25 chars

16

70

31.5

28.322

02h

VGA

text

80 x 25 chars

b/w

70

31.5

25.175

02h*

VGA

text

80 x 25 chars

b/w

70

31.5

25.175

02h+

VGA

text

80 x 25 chars

b/w

70

31.5

28.322

03h

VGA

text

80 x 25 chars

16

70

31.5

25.175

03h*

VGA

text

80 x 25 chars

16

70

31.5

25.175

03h+

VGA

text

80 x 25 chars

16

70

31.5

28.322

04h

VGA

graphics

320 x 200

4

70

31.5

25.175

05h

VGA

graphics

320 x 200

4

70

31.5

25.175

06h

VGA

graphics

640 x 200

2

70

31.5

25.175

07h

VGA

text

80 x 25 chars

b/w

70

31.5

28.322

07h+

VGA

text

80 x 25 chars

b/w

70

31.5

28.322

0Dh

VGA

graphics

320 x 200

16

70

31.5

25.175

0Eh

VGA

graphics

640 x 200

16

70

31.5

25.175

0Fh

VGA

graphics

640 x 350

b/w

70

31.5

25.175

10h

VGA

graphics

640 x 350

16

70

31.5

25.175

11h

VGA

graphics

640 x 480

2

60

31.5

25.175

12h

VGA

graphics

640 x 480

16

60

31.5

25.175

13h

VGA

graphics

320 x 200

256

70

31.5

25.175