User Guide

FIC CONFIDENTIAL AND PROPRIETARY
MB02 Functional Specifications Rev. 0.3 Page 32
FIC H/W
FIC CONFIDENTIAL AND PROPRIETARY 11-November-2002_
When enabled, SIS961 will positively respond to PCI memory cycles toward E
segment and F segment. Otherwise, it will respond by subtractive timing.
0 Extended BIOS Enable.(FFF80000~FFFDFFFF)
When enable, SIS961 will positively respond to PCI cycles toward the extended
segment. Otherwise, it will have no response.
Register 45h –Flash ROM Control Register
Bit Description
7:6 Flash EPROM Control Bit
if bit 7 is set to “0” after CPURST de-asserted, EPROM can be flashed when bit 6 is set
to “1”. Once bit 7 is set to “1”, EPROM can not be flashed until the system is reset.
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