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8.
Installation
8.1
Card address setting
The DIO9201 card occupied 4 I/O addresses and can be set at any location by DIP switch on
card.
Any DIP switch set "on" position means a "zero" in the corresponding address line and a "off"
position means a "one" in the corresponding address line.
For example, we wish to set the card address at 280h - 283h. We should set as follows:
p.s. A1 and A0 are forced to “zero” setting
8.2
I/O descriptions
READ
WRITE
BASE ADDRESS I/P DATA FROM CN1 O/P DATA TO CN1
BASE 1 I/P DATA FROM CN2 O/P DATA TO CN2
BASE 2 UNDEFINE
UNDEFINE
BASE 3 UNDEFINE DISABLE WDT
Be sure to check the I/O address to prevent conflict with other cards.
To prevent the transient and undefine states occurred mistakes to O/P during power on stage,
the hardware prohibited by a protection circuit. The protection will not release to work until
first writing O/P data on both CN1 and CN2 be finished. After the writing, the O/P of CN1 and
CN2 will simultaneously enabled.
