Octagon 6000 Series, Руководство пользователя

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Overview 6000 Series user’s manual
Interrupts used to the maximum
Real time operation often requires many interrupts for high speed
response to events. Five of the AT interrupts are connected to the ISA
bus in addition to the four interrupts used on the card This provides the
best use of the interrupts for demanding applications.
System expansion is flexible
The PC Microcontroller can expand via an 8-bit ISA unterminated
backplane with the Octagon 5000 Series expansion cards.
Mounting
There are several ways to mount a PC Microcontroller:
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Plug it directly into an Octagon Micro PC card cage. Power is sup-
plied through the backplane.
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Use the optional PC mounting bracket and plug it into any passive
ISA backplane. Power is supplied through the backplane.
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Panel mount it using the four mounting holes for stand alone opera-
tion. A two position terminal connector is used to supply the 5V
power.
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Stack it with other Micro PC cards. An Octagon two card stacking
kit or a flexible backplane using 3M connectors and ribbon cable can
be used to stack several cards together.
Hardware reset
A hardware reset can be done by any of the following means:
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Issuing the RESET software command, using the watchdog function
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Depressing the reset switch
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Cycling power
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Input from an optically-isolated reset.
A hardware reset ensures complete reset of the system and all attached
peripherals. An expired watchdog timer cycle also causes a hardware
reset to occur.
Watchdog timer for added safety
The watchdog timer resets the system if the program stops unexpect-
edly. The watchdog is enabled, disabled, and strobed under software
control. The time-out is 1.6 seconds (typical).