Avalue ECM-LX800D User Manual

Page 50

ECM-LX800D

50 ECM-LX800D User

’s Manual

3.5.4.1 IT8888 ISA Decode IO

The decode I/O spaces can be programmed to claim PCI I/O cycle with

Fast/Medium/Slow/Subtractive DEVSEL# (Device Select) timing speed.

Item

Options

Description

I/O Space 0
I/O Space 1
I/O Space 2

Enabled

Disabled

It allows you to allocate system resources to the ISA
bridge and to enable

I/O Speed 0

I/O Speed1
I/O Speed2

Subtractive Speed

Slow Speed

Medium Speed

Fast Speed

It allows you to specify the speed of the ISA bus.

I/O Addr. 0
I/O Addr. 1

I/O Addr. 2

1~4095

It allows you to allocate an address to the ISA bus.

I/O Size

1,2,4,8,16,32,64,128 bytes

It allows you to specify the size of the ISA bus.