Axiom SBC8156, User Manual

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SBC8156 Pentium All-in-One CPU Card Series User’s Manual
Award BIOS Reference *&
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This page is for Non-Compressed Version only.
POST (hex) Description
01-02
Reserved
C0
Turn off OEM specific cache, shadow...
03
1. Initialize EISA registers (EISA BIOS only)
2. Initialize all the standard devices with default values
Standard devices includes:
-DMA controller (8237)
-Programmable Interrupt Controller (8259)
-Programmable Interval Timer (8254)
-RTC chip
04
Reserved
05
1. Keyboard Controller Self-Test
2. Enable Keyboard Interface
06
Reserved
07
Verifies the basic R/W functionality of CMOS
BE
Program defaults values into chipset according to the
MODBINable Chipset Default Table
C1
Auto-detection of onboard DRAM & Cache
C5
Copy the BIOS from ROM into E0000-FFFFF shadow
RAM so that POST will go faster
08
Test the first 256K DRAM
09
1. Program the configuration register of Cyrix CPU
according to the MODBINable Cyrix Register Table
2. OEM specific cache initialization (if needed)
0A
1. Initialize the first 32 interrupt vectors with
corresponding Interrupt handlers Initialize INT no
from 33-120 with Dummy(Spurious) Interrupt Handler
2. Issue CPUID instruction to identify CPU type
3. Early Power Management initialization (OEM
specific)