User`s manual

AIMB-240 Series
92 AIMB-240 Series User’s Manual
Code (hex) Name Description
25 Reserved
26 Reserved
27 KBC final Init Final Initial KBC and setup BIOS data area
28 Reserved
29 Initialize Video Interface Read CMOS location 14h to find out type of video in use. Detect
and Initialize Video Adapter.
2A Reserved
2B Reserved
2C Reserved
2D Video memory test Test video memory, write sign-on message to screen. Setup
shadow RAM - Enable shadow according to Setup.
2E Reserved
2F Reserved
30 Reserved
31 Reserved
32 Reserved
33 PS2 Mouse setup Setup PS2 Mouse and reset KB
34 Reserved
35 Test DMA Controller 0 Test DMA Controller 0
36 Reserved
37 Test DMA Controller 1 Test DMA Controller 1
38 Reserved
39 Test DMA Page
Registers
Test DMA Page Registers.
3A Reserved
3B Reserved
3C Test Timer Counter 2 Test 8254 Timer 0 Counter 2.
3D Reserved
3E Test 8259-1 Mask Bits Verify 8259 Channel 1 masked interrupts by alternately turning off
and on the interrupt lines.
3F Reserved
40 Test 8259-2 Mask Bits Verify 8259 Channel 2 masked interrupts by alternately turning off
and on the interrupt lines.
41 Reserved
42 Reserved