Code | Beeps | POST Routine Description |
|
|
|
C7h |
| Initialize notebook docking late |
|
|
|
C8h |
| Force check (optional) |
|
|
|
C9h |
| Extended checksum (optional) |
|
|
|
CAh |
| Redirect Int 15h to enable remote keyboard |
|
|
|
CBh |
| Redirect Int 13h to Memory Technologies |
|
| Devices such as ROM, RAM, PCMCIA, and |
|
| serial disk. |
|
|
|
CCh |
| Redirect Int 10h to enable remote serial video |
|
|
|
CDh |
| |
|
|
|
CEh |
| Initialize digitizer and display message. |
|
|
|
D2h |
| Unknown interrupt |
|
|
|
| The following are for boot block in Flash ROM | |
|
|
|
E0h |
| Initialize the chipset |
|
|
|
E1h |
| Initialize the bridge |
|
|
|
E2h |
| Initialize the CPU |
|
|
|
E3h |
| Initialize the system timer |
|
|
|
E4h |
| Initialize system I/O |
|
|
|
E5h |
| Check force recovery boot |
|
|
|
E6h |
| Checksum BIOS ROM |
|
|
|
E7h |
| Go to BIOS |
|
|
|
E8h |
| Set Huge Segment |
|
|
|
E9h |
| Initialize Multi Processor |
|
|
|
EAh |
| Initialize OEM special code |
|
|
|
EBh |
| Initialize PIC and DMA |
|
|
|
ECh |
| Initialize Memory type |
|
|
|
EDh |
| Initialize Memory size |
|
|
|
EEh |
| Shadow Boot Block |
|
|
|
EFh |
| System memory test |
|
|
|
F0h |
| Initialize interrupt vectors |
|
|
|
F1h |
| Initialize Run Time Clock |
|
|
|
F2h |
| Initialize video |
|
|
|
F3h |
| Initialize System Management Mode |
|
|
|
F4h | 1 | Output one beep |
|
|
|
F5h |
| Clear Huge Segment |
|
|
|
F6h |
| Boot to Mini DOS |
|
|
|
F7h |
| Boot to Full DOS |
|
|
|
Chapter 4 | 73 |
