I/o port base address settings – PictureTel LIVE GATEWAY 3.1 User Manual
Page 69
Switch 1 corresponds to the least significant bit of a block of 32 byte I/O port addresses. When it is in the off
position, it sets bit 5 of the address, and its numerical weight is 20 hexadecimal. Switch 5 corresponds to the
most significant bit of a block of 32 byte I/O port addresses. When it is in the off position, it sets bit 9 of the
address, and its numerical weight is 200 hexadecimal.
NOTE:
I/O addresses below 100 hexadecimal are reserved for the system board
of the host computer. Setting the LiveGateway board I/O address below
100 hexadecimal may interfere with the operation of the host computer.
I/O Port Base Address Settings
The following table lists the values for the I/O port base addresses and their corresponding DIP Switch
positions.
On (1)
Switch Position
I/O Port Base Address (hexadecimal)
Off
(0) 1 2 3 4 5
1
X
100
0
X X X X
1
X X
120
0
X
X
X
1
X X
140
0
X
X
X
1
X X X
160
0
X
X
1
X
X
180
0
X X X
1
X X X
1A0
0
X
X
1
X X X
1C0
0
X
X
1
X X X X
1E0
0
X