DIGITAL-LOGIC AG
PCCP5 Manual V2.3
38
4.6.7 EEPROM saved CMOS setup
The EEPROM has different functions, as listed below:
•
Backup of the CMOS-Setup values.
•
Storing system informations like: version, production date, customisation of the board, CPU type.
•
Storing user/application values.
The EEPROM will be updated automatically after exiting the BIOS setup menu. The system will operate also
without any CMOS battery. While booting up, the CMOS is automatically updated with the EEPROM values.
Press the Esc-key while powering on the system before the video shows the BIOS message and the CMOS
will
not
be updated.
This would be helpful, if wrong parameters are stored in the EEPROM and the setup of the BIOS does not
start.
If the system hangs or a problem appears, the following steps must be performed:
1. Reset the CMOS-Setup (use the jumper to reset or 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 the chapter 9.4.1.
•
The system information are read onyl information. To read, use the SFI functions.
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