10-3
PC-510 user’s manual
IRQ routing and opto IRQs
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Opto IRQs
OPTOA and OPTOB are the two optically isolated channels and are
accessible at J17. These channels are configurable to drive either the
SUSPEND/RESUME or the PMI signal. Also, either OPTOA or OPTOB
can be routed through the interrupt routing matrix to generate a system
reset. The opto-isolation allows the input source to extend as far as
50 feet from the card. A +5V signal activates the SUSPEND/RESUME,
PMI or system reset signal. Noise filtering is built-in and the isolation
from the system ground is 500V. A voltage greater than 3.1V at 5.0 mA
guarantees a SUSPEND/RESUME or a PMI interrupt or a system
reset.
When signaling for SUSPEND/RESUME, PMI, or system reset, the
voltage is applied in a pulse period greater than 50 µS. The interrupt
matrix chip requires that the input voltage remains stable until the
interrupt is acknowledged. At that time, the interrupt source can be
rearmed by returning the input to 0 volts.
Note
See the Accessories appendix for mating information on the OPTOA and
OPTOB connectors.
The interrupt routing matrix provides flexibility to the interrupt struc-
ture which allows connection between the lower-ordered ISA interrupts
and the unused higher-ordered interrupts. Caution must be used when
configuring the jumper options.
Note
Bus IRQ6 can be inadvertently routed to two interrupts. This is not an
acceptable configuration. The application software must also be aware
of the interrupt that is set for the particular resource.
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Interrupt routing matrix defaults
The 510_001.ISP file lists the interrupt routing matrix defaults. See
the SETIRQ.DOC file on the PC-510 utility disk for more information.
≡
Programming
SETIRQ 510_001.ISP
See the \IRQ\SETIRQ.DOC directory on the PC-510 utility disk for
additional PC-510 ISP files and their functional descriptions in the
SETIRQ.DOC file.
Содержание PC-510
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Страница 45: ...2 12 Quick start PC 510 user s manual ...
Страница 55: ...3 10 SETUP programs PC 510 user s manual ...
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Страница 73: ...5 12 Serial ports PC 510 user s manual ...
Страница 77: ...6 4 LPT1 parallel port PC 510 user s manual ...
Страница 83: ...7 6 Console devices PC 510 user s manual ...
Страница 119: ...13 8 CRTs and flat panels PC 510 user s manual ...
Страница 123: ...14 4 GPS interface PC 510 user s manual ...
Страница 125: ...15 2 PC 104 expansion PC 510 user s manual ...
Страница 127: ...Overview of Section 3 PC 510 user s manual ...
Страница 131: ...16 4 Watchdog timer and hardware reset PC 510 user s manual ...
Страница 147: ...18 8 Transferring files remote disks PC 510 user s manual ...
Страница 177: ...21 22 CPU power management PC 510 user s manual ...
Страница 181: ...22 4 Troubleshooting PC 510 user s manual ...
Страница 183: ...Overview of Section 4 PC 510 user s manual ...
Страница 203: ...A 20 Technical data PC 510 user s manual ...
Страница 231: ...B 28 Software utilities PC 510 user s manual ...