Phoenix MicroATX Express – Installation Guide
Traps INT1Ch vector to "POSTINT1ChHandlerBlock."
C0
Early CPU Init Start -- Disable Cache - Init Local APIC
C1
Set up boot strap processor Information
C2
Set up boot strap processor for POST
C5
Enumerate and set up application processors
C6
Re-enable cache for boot strap processor
C7
Early CPU Init Exit
0A
Initializes the 8042 compatible Key Board Controller.
0B
Detects the presence of PS/2 mouse.
0C
Detects the presence of Keyboard in KBC port.
0E
Testing and initialization of different Input Devices. Also, update the Kernel Variables.
Traps the INT09h vector, so that the POST INT09h handler gets control for IRQ1.
Uncompress all available language, BIOS logo, and Silent logo modules.
13
Early POST initialization of chipset registers.
24
Uncompress and initialize any platform specific BIOS modules.
30
Initialize System Management Interrupt.
2A
Initializes different devices through DIM.
See
DIM Code Checkpoints
section of document for more information.
2C
Initializes different devices. Detects and initializes the video adapter installed in the system
that have optional ROMs.
2E
Initializes all the output devices.
31
Allocate memory for ADM module and uncompress it. Give control to ADM module for
initialization. Initialize language and font modules for ADM. Activate ADM module.
33
Initializes the silent boot module. Set the window for displaying text information.
37
Displaying sign-on message, CPU information, setup key message, and any OEM specific
information.
38
Initializes different devices through DIM. See
DIM Code Checkpoints
section of document
for more information.
39
Initializes DMAC-1 & DMAC-2.
3A
Initialize RTC date/time.
3B
Test for total memory installed in the system. Also, Check for DEL or ESC keys to limit
memory test. Display total memory in the system.
3C
Mid POST initialization of chipset registers.
40
Detect different devices (Parallel ports, serial ports, and coprocessor in CPU, … etc.)
successfully installed in the system and update the BDA, EBDA…etc.
50
Programming the memory hole or any kind of implementation that needs an adjustment in
system RAM size if needed.
52
Updates CMOS memory size from memory found in memory test. Allocates memory for
Extended BIOS Data Area from base memory.
60
Initializes NUM-LOCK status and programs the KBD typematic rate.
75
Initialize Int-13 and prepare for IPL detection.
78
Initializes IPL devices controlled by BIOS and option ROMs.
7A
Initializes remaining option ROMs.
7C
Generate and write contents of ESCD in NVRam.
84
Log errors encountered during POST.
85
Display errors to the user and gets the user response for error.
87
Execute BIOS setup if needed / requested.
8C
Late POST initialization of chipset registers.
8D
Build ACPI tables (if ACPI is supported)
8E
Program the peripheral parameters. Enable/Disable NMI as selected
90
Late POST initialization of system management interrupt.
A0
A1
Clean-up work needed before booting to OS.
A2
Takes care of runtime image preparation for different BIOS modules. Fill the free area in
Check boot password if installed.
50
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Summary of Contents for MicroATX Express
Page 1: ... Phoenix MicroATX Express Motherboard Installation Guide ...
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Page 61: ...Appendix B Flash BIOS User s Notes 53 StockC heck com Downloaded from StockCheck com ...
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