Peak 555A User’s Guide
BIOS Setup 4-
46
a
This POST code is for boot block
POST
(hex)
Description
C0
1. Turn off OEM specific cache, shadow...
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
C1
Auto-detection of onboard DRAM & Cache
C3
Checking checksum of compressed code
C5
Copy the BIOS from ROM into E0000-FFFFF shadow RAM
so that POST will go faster
01
Clear base memory 0~640K
0C
Initial interrupt vector 00-1FH
0D
Initial ISA VGA
41H
Enable FDD and detect media type
FFH
Boot from FDD