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File No.
960-010
Table 2-2
Printer port LED normal status (continued)
Status
11H
12H
13H
14H
15H
16H
17H
18H
19H
1AH
IBH
lCH
1DH
1EH
1FH
20H
21H
22H
23H
24H
25H
26H
27H
28H
29H
2AH
2BH
2CH
2DH
2EH
2FH
30H
31H
32H
33H
Messaae
DMA channel 1 test
DMA page register test
Memory refresh test
First 64KB memory test
Interrupt vector set
PIC
1
mask register test
PIC 2 mask register test
CMOS Battery test
CMOS chechsum test
Reserved
Keyboard initialization
1
VRAM
test
Video I/O initialization
System memory size set
System memory size check
System memory and extra memory test
PIC test
NMI and parity test
Interrupt process test
Protect mode test
Extended memory size check
Extended memory test
Protect mode exception processing test
Reserved
CRT type check
PIT interrupt check
Hardware interrupt vector set
Keyboard initialization 2
FDD intialization
SIO/Printer initialization
HDD initialization
Option ROM check
Timer check
NDP initialization
Prepare for boot
2-13
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