
Check Point |
| Description |
|
| |
35H | PCI pass 0 | |
|
| |
4EH | Scan PnP Devices | |
|
| |
4FH | Config PnP Devices | |
|
| |
40H | Initial PCI (1) | |
|
| |
41H | Initial PCI (2) | |
|
| |
42H | Initial PCI (3) | |
|
| |
44H | Initial PCI (4) | |
|
| |
45H | Initial PCI (5) | |
|
| |
50H | Initializes video display | |
|
| NOTE: If system has any display card, it should be initialized via its I/O ROM or |
|
| corresponding initialization program. |
|
| |
51H | Copy | |
|
| |
54H | Process VGA shadow region | |
|
| |
4CH | Check CPU brand, ID and external frequency | |
|
|
|
58H | 1. | Displays Acer (or OEM) logo (if necessary) |
| 2. | Displays Acer copyright message (if necessary). |
| 3. | Displays BIOS serial number. |
|
| |
59H | Hook INT 1CH for Quiet Boot. | |
|
| |
64H | Tests keyboard interface | |
|
| NOTE: The keyboard LEDs should flash once. |
|
| |
5CH | Memory test (except the 384K base memory) | |
|
| |
5EH | Load Pentium Pro CPU update code | |
|
| |
5AH | Test SM RAM | |
|
| |
5FH | Enables/Disables USB Function | |
|
|
|
60H | 1. | Initializes SRAM cache capacity |
| 2. | Enables the cache function |
|
| |
70H | Initializes parallel port(s) | |
|
| |
74H | Initializes parallel port(s) | |
|
| |
78H | Reset math coprocessor | |
|
| |
7CH | Check and initialize pointing device | |
|
| |
80H | Set security status | |
|
| |
82H | Prepare entering SETUP for user pressing CTRL + ALT DEL. | |
|
| |
84H | Keyboard device initialization | |
|
|
|
6CH | 1. | Tests and initializes FDD |
| 2. | The FDD LED should flash once and its head should be positioned |
|
|
|
88H | 1. | Sets HDD type and features (i.e. transfer speed, mode,....) |
| 2. | Tests HDD controller |
|
| |
90H | Displays POST status | |
|
| |
93H | Rehook INT 1CH for Quiet Boot | |
|
|
|
94H | 1. | Initializes I/O ROM |
| 2. | I/O ROM is an optional extension of the BIOS located on an installed |
|
| part of the I/O subsystem. POSt detects I/O ROMs and gives them opportunity to |
|
| initialize themselves and their hardware environment. |
|
| |
96H | Initializes PCI I/O ROM | |
|
| |
A0H | Sets time and day | |
|
| |
A4H | Initializes security features | |
|
| |
A2H | Initializes setup items | |
|
| |
A8H | Setup SMI parameters | |
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66 | Chapter 4 |