Technical data

BIOS and System Programming
70 VIPA GmbH CP486 ⋅ 00/14
4.3.7 ROM-SETUP
VIPA-BIOS enables an ROM-SETUP. In this case, CMOS-RAM is only used to buffer date and
time. The proper system SETUP is filed in the system EPROM.
Table for ROM-SETUP is stored in the BIOS-EPROM in the addresses F000:7800 to F000:784E
(hex). This table contains as a standard the SETUP table in case of battery failure.
Address F000:784F (hex) includes a control flag having following functions:
FF For system startup, SETUP from CMOS-RAM is used. Only in the
case of a battery failure the SETUP in ROM is used together with
the settings of the DIP-switch S2
00 ROM-SETUP is always used to start up the system. A SETUP change
is possible then only by exchanging the BIOS-EPROM.
(For customer's specific SETUPs please ask VIPA)