Solution:
The switch is marked on the card as Switch 3 or Switch 4.
The switch has ten actuators, which can be in either the ON = 0 (up) or OFF = 1 (down) position.
The memory address is expressed in hexadecimal e.g. 0x0D0000 but entered into the card in a binary form.
Actuator Function
1-4
set the value of the most significant nibble of the address of the card in memory (e.g. ON ON ON ON (equates to binary 000) for the nibble 0 in 0D).
5-8
sets the value of the second most significant nibble of the address of the card in memory. (e.g OFF OFF ON OFF (equates to binary 1101) for the nibble D in 0D).
9
addresses the card on the 0K boundary (OFF position, equating to the value of 0 in the memory address) or 32 K boundary (ON position, equating to the value of 8 in the memory address). In the memory address see the number which follows the letter, e.g. 8 in 0x0E8000; the value can only be either 0 or 8.
10
leave in the OFF position
These are the common DIL switch settings for the SX ISA card.
| |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
| C8000 |
on |
on |
on |
on |
off |
off |
on |
on |
on |
off |
| D0000 |
on |
on |
on |
on |
off |
off |
on |
off |
off |
off |
| D8000 |
on |
on |
on |
on |
off |
off |
on |
off |
on |
off |
| E0000 |
on |
on |
on |
on |
off |
off |
off |
on |
off |
off |
| E8000 |
on |
on |
on |
on |
off |
off |
off |
on |
on |
off |