Table 69. Interrupt Definitions (continued)

ISA Interrupt

Description

IRQ5

Parallel port

IRQ6

Floppy disk

IRQ7

Parallel port

IRQ8_L

Active low RTC interrupt

IRQ9

 

IRQ10

 

IRQ11

 

IRQ12

Mouse interrupt

IRQ14

Compatibility IDE interrupt from primary channel IDE devices 0 and 1

IRQ15

Reserved

SMI

System Management Interrupt. General purpose indicator is sourced by the OSB4 and

 

BMC to the processors

SCI

 

Video Modes

The RAGE IIC chip supports all standard IBM VGA modes. The following tables show all the modes that this implementation supports, including the number of colors, resolution, and refresh rates.

Table 70. Standard VGA Modes

Resolution

Refresh Rate (Hz)

Colors

640x480

200

256

800x600

200

256

1024x768

150

256

1152x864

120

256

1280x1024

100

256

1600x1200

76

256

640x480

200

65K

800x600

200

65K

1024x768

150

65K

1152x864

120

65K

1280x1024

100

65k

1600x1200

76

65k

640x480

200

16.7M

800x600

160

16.7M

112

SKA4 Baseboard Product Guide