PORT 80 CODES (continued)
Code
Description
19
8254 timer test over. About to start memory refresh test.
1A
Memory refresh line is toggling. Going to check 15 microsecond
ON/OFF time.
20
Memory refresh period 30 microsecond test complete. Base 64KB
memory to be initialized.
23
Base 64KB memory initialized. Going to set BIOS stack and do any
setup before interrupt vector init.
24
Setup required before vector initialization complete. Interrupt vector
initialization about to begin.
25
Interrupt vector initialization done. Going to read input port of the 8042
for turbo switch (if any) and clear password if POST diagnostic switch
is on.
26
Input port of 8042 is read. Going to initialize global data for turbo switch.
27
Global data initialization for turbo switch is over. Any initialization before
setting video mode to be done next.
28
Initialization before setting video mode is complete. Going for mono-
chrome mode and color mode setting.
2A
Different Buses init (system, static, output devices) to start if present.
(See end of Port 80H Codes for details of different Buses.)
2B
About to give control for any setup required before optional video
ROM check.
2C
Processing before video ROM control is done. About to look for optional
video ROM and give control.
2D
Optional video ROM control is done. About to give control to do any
processing after video ROM returns control.
2E
Return from processing after the video ROM control. If EGA or VGA
not found, then do display memory read/write test.
2F
EGA/VGA not found. Display memory read/write test about to begin.
30
Display memory read/write test passed. About to look for the retrace
checking.
31
Display memory read/write test or retrace checking failed. About to do
alternate display memory read/write test.
BIOS MESSAGES
TECHNICAL REFERENCE
A-9
Summary of Contents for SB586TCP/166
Page 2: ...This page intentionally left blank...
Page 11: ...SPECIFICATIONS TECHNICAL REFERENCE 1 3...
Page 44: ...This page intentionally left blank PCI REFERENCE 2 20 TECHNICAL REFERENCE...
Page 94: ...This page intentionally left blank ADVANCED SETUP 5 18 TECHNICAL REFERENCE...
Page 106: ...This page intentionally left blank PERIPHERAL SETUP 7 8 TECHNICAL REFERENCE...
Page 122: ...This page intentionally left blank BIOS MESSAGES A 16 TECHNICAL REFERENCE...
Page 128: ...This page intentionally left blank TECHNICAL REFERENCE...