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.
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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.
Summary of Contents for PC-510
Page 7: ...Notice to user PC 510 user s manual ...
Page 17: ...xii Contents PC 510 user s manual ...
Page 23: ...About this manual PC 510 user s manual ...
Page 25: ...Overview of Section 1 PC 510 user s manual ...
Page 35: ...2 2 Quick start PC 510 user s manual Figure 2 1 PC 510 component diagram ...
Page 45: ...2 12 Quick start PC 510 user s manual ...
Page 55: ...3 10 SETUP programs PC 510 user s manual ...
Page 59: ...4 4 Save and run programs PC 510 user s manual ...
Page 61: ...Overview of Section 2 PC 510 user s manual ...
Page 73: ...5 12 Serial ports PC 510 user s manual ...
Page 77: ...6 4 LPT1 parallel port PC 510 user s manual ...
Page 83: ...7 6 Console devices PC 510 user s manual ...
Page 119: ...13 8 CRTs and flat panels PC 510 user s manual ...
Page 123: ...14 4 GPS interface PC 510 user s manual ...
Page 125: ...15 2 PC 104 expansion PC 510 user s manual ...
Page 127: ...Overview of Section 3 PC 510 user s manual ...
Page 131: ...16 4 Watchdog timer and hardware reset PC 510 user s manual ...
Page 147: ...18 8 Transferring files remote disks PC 510 user s manual ...
Page 177: ...21 22 CPU power management PC 510 user s manual ...
Page 181: ...22 4 Troubleshooting PC 510 user s manual ...
Page 183: ...Overview of Section 4 PC 510 user s manual ...
Page 203: ...A 20 Technical data PC 510 user s manual ...
Page 231: ...B 28 Software utilities PC 510 user s manual ...