6. BIOS Setup
82
SPI-8150-LVA, SPI-8151-LVA
POST
(hex)
Description
03h Initial Superio_Early_Init switch.
04h Reserved
05h 1. Blank out screen
2. Clear CMOS error flag
06h Reserved
07h 1. Clear 8042 interface
2. Initialize 8042 self-test
08h 1. Test special keyboard controller for Winbond 977 series Super I/O chips.
2. Enable keyboard interface.
09h Reserved
0Ah 1. Disable PS/2 mouse interface (optional).
2. Auto detect ports for keyboard & mouse followed by a port & interface swap
(optional).
3. Reset keyboard for Winbond 977 series Super I/O chips.
0Bh Reserved
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 real-time
clock power status, 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 onboard clock generator if Early_Init_Onboard_Generator is defined. See also
POST 26h.
17h Reserved
18h Detect CPU information including brand, SMI type (Cyrix or Intel) and CPU level (586 or
686)
19h Reserved
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