1 eeprom memory for setup, 13 memory & i/o map, 1 system memory map – Kontron MSM800SEL User Manual

Page 53: Eeprom memory for setup, Memory & i/o map, System memory map

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If the system hangs or a problem appears, the following steps must be performed:

1. Reset the CMOS-Setup (disconnect the battery for at least 10 minutes).
2. Press ESC until the system starts up.
3. Enter the BIOS Setup:

a. load DEFAULT values
b. enter the settings for the environment
c. exit the setup

4. Restart the system.

The user may access the EEPROM through the INT15 special functions. Refer to that chapter in the
BIOS/Driver/Software manual "GEODE LX800 / LX900" on the Product CD.

The system information is read-only and uses the SFI functions. Refer to the "GEODE LX800 / LX900" manual.

6.12.1 EEPROM Memory for Setup

The EEPROM is used for setup and configuration data, stored as an alternative to the CMOS-RTC. Optionally, the
EEPROM setup driver may update the CMOS RTC, if the battery is running down and the checksum error would appear
and stop the system. The capacity of the EEPROM is 2 kByte.

Organization of the 2048Byte EEPROMs:

Address Map

Function

0000h

CMOS-Setup valid (01=valid)

0001h

Reserved

0003h

Flag for KCC-Message (FF=no message)

0010h-007Fh

Copy of CMOS-Setup data

0080h-00FFh

Reserved for AUX-CMOS-Setup

0100h-010Fh

Serial-Number

0110h-0113h

Production date (year/day/month)

0114h-0117h

1. Service date (year/day/month)

0118h-011Bh

2. Service date (year/day/month)

011Ch-011Fh

3. Service date (year/day/month)

0120h-0122h

Boot errors (Auto incremented if any boot error occurs)

0123h-0125h

Setup entries (Auto incremented on every Setup entry)

0126h-0128h

Low battery (Auto incremented every time the battery is low, EEPROM -> CMOS)

0129h-012Bh

Startup (Auto incremented on every power-on start)

0130h

Reserved

0131h

Reserved

0132h/0133h

BIOS Version (V1.4 => [0132h]:= 4, [0133h]:=1)

0134h/0135h

Board Version (V1.5 => [0124h]:=5, [0125h]:=1)

0136h

Board type (‘M’=PC/104, ‘E’=Euro, ‘W’=MSWS, ‘S’=Slot, ‘C’=Custom, ‘X’= smartCore or smartModule)

0137h

CPU type: (01h=ELAN300/310, 02h=ELAN400, 05h=P5, 08h=P3, 09h=ELAN520, 10h=P-M).

0200h-03FFh

Reserved

0200h-027Fh

Reserved

0400h-07FFh

Free for Customer use

6.13 Memory & I/O Map

6.13.1 System Memory Map

The X86 CPU, used as a central processing unit on the MICROSPACE, has a memory address space which is defined by
32 address bits. Therefore, it can address 1GByte of memory. The memory address map is as follows:

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