Technical information

OPTO DIO Reference Opto DIO48
Figure 2-1. Opto DIO48 Card Layout._________________________________
..
PA10 OUT
WATCHDOG
50
WAY
WATCH DOG OPTIONS
.. Reslo BUS gated to IRQ or RESET via software C
Reshi A_____
.. Reshi OUT IO Addr B
.. Reslo VIA 0308hex L
Goodlo PA10 123456 E______
.. Goodhi UDN2984
IRQ7
Setting The Opto DIO48 I/O Address._________________________________
By referring to the Opto DIO48 card locate the 6 way DIP
switch at the middle left hand corner of the card.
The factory set address, 0308H, is set as shown in Figure
2-2. DIP switches control the base address selected, switches 1-6
correspond to the A3-A8 address lines. The Opto DIO48 card
can reside at one of 64 base addresses on an 8 byte boundary
within the range 0200H-03F8H.
The software controlling the card must know its i/o address.
Figure 2-2. Opto DIO48 Factory Set DIP Switches.____________________________________________
DIP 1-6 I/O Address select
on
off 123456
Opto DIO48 Factory Set Default Address= 0308 Hex, 776 Decimal
The i/o addresses that are likely to be good are in Figure
2-3, addresses to avoid are given in Figure 2-4. Only if the
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