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28BPC-500-5820 User's Manual
11 Test DMA Page Test DMA Page Registers.
Registers
12-13 Reserved
14 Test Timer Test 8254 Timer 0
Counter 2 Counter 2
15 Test 8259-1 Mask Verify 8259 Channel 1 masked
Bits interrupts by alternately turning off
and on the interrupt lines.
16 Test 8259-2 Mask Verify 8259 Channel 2 masked
Bits interrupts by alternately turning off
and on the interrupt lines.
17 Test Stuck Turn off interrupts then verify no
8259's Interrupt interrupt mask register is on.
Bits
18 Test 8259 Force an interrupt and verify the
Interrupt interrupt occurred.
Functionality
19 Test Stuck NMI Verify NMI can be cleared.
Bits (Parity/IO Check)
1A Display CPU clock
1B-1E Reserved
1F Set EISA Mode If EISA non-volatile memory checksum
is good, execute EISA initialization.
If not, execute ISA tests an clear
EISA mode flag.
Test EISA Configuration Memory
Integrity (checksum & communication interface).
20 Enable Slot 0 Initialize slot 0 (System Board).
21-2F Enable Slots Initialize slots 1 through 15.
1-15
30 Size Base and Size base memory from 256K to 640K
Extended Memory and extended memory above 1MB.
31 Test Base and Test base memory from 256K to 640K
Extended Memory and extended memory above 1MB using various
patterns.
NOTE: This test is skipped in EISA
mode and can be skipped with ESC key
in ISA mode.
32 Test EISA If EISA Mode flag is set then test
Extended Memory EISA memory found in slots initialization. NOTE:
This test is skipped in ISA mode and can be
skipped with ESC key in EISA mode.
33-3B Reserved
3C Setup Enabled
3D Initialize & Detect if mouse is present,
Install Mouse initialize mouse, install interrupt vectors.
3E Setup Cache Initialize cache controller.
Controller
3F Reserved
BF Chipset Program chipset registers with Setup
Initialization values
40 Display virus protect disable or enable
41 Initialize Initialize floppy disk drive
Floppy Drive & controller and any drives.
Controller
42 Initialize Hard initialize hard drive controller and
Drive & Controller any drives.
43 Detect & Initialize Initialize any serial and parallel
Serial/Parallel Ports ports (also game port).
44 Reserved