Appendix | ||
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| 3. Reset keyboard for Winbond 977 series Super I/O | |
| chips. | |
0Ch | Reserved | |
0Dh | Reserved | |
0Eh | Test F000h segment shadow to see whether it is R/W- | |
| able or not. If test fails, keep beeping the speaker. | |
0Fh | Reserved | |
10h | Auto detect flash type to load appropriate flash R/W | |
| codes into the run time area in F000 for ESCD & DMI | |
| support. | |
11h | Reserved | |
12h | Use walking 1’s algorithm to check out interface in | |
| CMOS circuitry. Also set | |
| and then check for override. | |
13h | Reserved | |
14h | Program chipset default values into chipset. Chipset | |
| default values are MODBINable by OEM customers. | |
15h | Reserved | |
16h | Initial Early_Init_Onboard_Generator switch. | |
17h | Reserved | |
18h | Detect CPU information including brand, SMI type | |
| (Cyrix or Intel) and CPU level (586 or 686). | |
19h | Reserved | |
1Ah | Reserved | |
1Bh | Initial interrupts vector table. If no special specified, all | |
| H/W interrupts are directed to PURIOUS_INT_HDLR | |
| & S/W interrupts to SPURIOUS_soft_HDLR. | |
1Ch | Reserved | |
1Dh | Initial EARLY_PM_INIT switch. | |
1Eh | Reserved | |
1Fh | Load keyboard matrix (notebook platform) | |
20h | Reserved | |
21h | HPM initialization (notebook platform) | |
22h | Reserved | |
23h | 1. Check validity of RTC value: e.g. a value of 5Ah is an | |
| invalid value for RTC minute. | |
| 2. Load CMOS settings into BIOS stack. If CMOS | |