CHAPTER 8 - BIOS Setup
SPI-8450-LLVA 117
POST
(hex) Description
52h Test all memory (clear all extended memory to 0)
53h Reserved
54h Reserved
55h Display number of processors (multi-processor platform)
56h Reserved
57h 1. Display PnP logo
2. Early ISA PnP initialization
-Assign CSN to every ISA PnP device.
58h Reserved
59h Initialize the combined Trend Anti-Virus code.
5Ah Reserved
5Bh (Optional Feature)
Show message for entering AWDFLASH.EXE from FDD (optional)
5Ch Reserved
5Dh 1. Initialize Init_Onboard_Super_IO switch.
2. Initialize Init_Onbaord_AUDIO switch.
5Eh Reserved
5Fh Reserved
60h Okay to enter Setup utility; i.e. not until this POST stage can users enter the CMOS setup
utility.
61h Reserved
62h Reserved
63h Reserved
64h Reserved
65h Initialize PS/2 Mouse
66h Reserved
67h Prepare memory size information for function call: INT 15h ax=E820h
68h Reserved
69h Turn on L2 cache
6Ah Reserved
6Bh Program chipset registers according to items described in Setup & Auto-configuration table.
6Ch Reserved