Controller Data Sheets
85
IntelliTouch PC-Bus Controller (E281{A}-4025)
Verify the controller's switch settings are as follows:
12-bit Mode
SW1-ON
Reserved
SW2-ON
Stream Mode
SW3-OFF
Reserved
SW4-ON
Z-axis enable
SW5-ON
Reserved
SW6-ON
Reserved
SW7-ON
Reserved
SW8-ON
Next, set the controller's Base I/O Port address with the W2 and W3 jumpers. W3
selects the high order address, and W2 the low order address. The values of the
settings are shown in the following table.
W3
W2
Position
Value
Position
Value
(from top)
(in hex)
(from top)
(in hex)
4
300
8
E0
3 (recommended)
200
7
C0
2
100
6
A0
1
000
5 (recommended)
80
4
60
3
40
2
20
1
00
To calculate the Base I/O Port address, add the values of the jumpered positions of
W3 and W2. For example, the E281{A}-4025 is usually shipped jumpered for a
Base I/O Port address of 280 hexadecimal. W3 is jumpered in the third position
(200), and W2 is jumpered in the fifth position (80). The address is the sum of
200 + 80, which is 280.
Next, install a jumper vertically at W1 to select the Interrupt (IRQ). A jumper is
supplied, but may be found in a horizontal, inactive position. See Choosing an
Interrupt (IRQ) for PC-Bus Controllers, page 74. The jumper block positions are
as follows:
