Installation
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11
2.7
Jumpers’ Description
The PCI-7396 is a ‘plug and play’ add-on card using PCI bus. It is
un-necessary for user to setup its base address and IRQ level to fit the
hardware of your computer system. However, to fit users’ versatile
operation, there are still a few jumpers to set the power-on-states of
all I/O ports.
2.7.1 Power-on-state
For all I/O ports of the PCI-7396, the power-on-states could be pulled
high, pulled low, or floating. It is depended on the jumper settings.
Table 2.1 lists the reference numbers of jumpers and their
corresponding port names.
Jumper
Port Name
Jumper
Port Name
JA1
P1A
JA3
P3A
JB1
P1B
JB3
P3B
JC1
P1C
JC3
P3C
JA2
P2A
JA4
P4A
JB2
P2B
JB4
P4B
JC2
P2C
JC4
P4C
Table 2.1 Jumpers and port names list
All the jumpers are identical physically. The power-on-state of each
port can be set independently. To pull all signals low is the default
settings. The following diagram use JA1 as an example to show the
possible settings.
Port A of PPI1 is pulled low.(default setting)
Port A of PPI1 is pulled high.
When the jumper cap is removed, the power-on-state is floating.
JA1
JA1