Isa Bus Clock And Timing - AOpen AP55CS User Manual

AMI BIOS
ISA Memory Hole at 15-16 MB
To prevent memory address conflicts between the system and
expansion boards, reserve this memory range for the use of either
the system or an expansion board. Disable the parameter to
disregard the option.

ISA Bus Clock and Timing

ISA Bus Clock
This parameter allows you to set the ISA bus clock that your board
supports. The selections are 7.159 MHz, PCICLK/4 and PCICLK/3.
The default setting is 7.159 MHz .
16-bit I/O Cycle Recovery Time
This parameter allows you to set the response time of the 16-bit I/O
devices connected to your system. The selection ranges from 2
BUSCLK to 5 BUSCLK. The default setting is 4 BUSCLK .
8-bit I/O Cycle Recovery Time
This parameter allows you to set the response time of the 8-bit I/O
devices connected to your system. The available settings are 3
BUSCLK, 4 BUSCLK, 5 BUSCLK and 8 BUSCLK. The default is 5
BUSCLK.
16-bit I/O Wait States
This parameter lets you set the wait state of the 16-bit I/O devices
connected to your system. The settings are 0 and 1. The default
setting is .
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