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PEAK 6220 User‘s Guide
BIOS Setup 4-
46
a
This page is for Non-Compressed Version only
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 CMOS’s basic R/W functionality
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(Suprious)
Interrupt Handler
2. Issue CPUID instruction to identify CPU type
3. Early Power Management initialization (OEM specific)