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PCI-DIO96 User's Guide Specifications

Interrupts

The interrupt control registers allow the four 82C55 devices and the 8254 counter timer to be used as interrupt

sources.

Table 4. Interrupt specifications

Interrupt

INTA# - mapped to IRQn via PCI BIOS at boot-time

PCI Interrupt enable

Programmable through PLX9052 INTCSR register (INTCSR 4Ch)

Interrupt polarity

High or low level. Programmable through PLX9052

Rising or falling edge. Programmable through PLX9052

Interrupt sources

82C55 in Mode 1 or Mode 2 interrupt configuration:

 First Port C0

 First Port C3

 Second Port C0

 Second Port C3

 Third Port C0

 Third Port C3

 Fourth Port C0

 Fourth Port C3

Note: Any interrupt source above may be individually enabled.

82C54 Counter

 Counter 1 OUT

 Counter 2 OUT

Note: Counter 1 and 2 interrupts are exclusive. Only one counter may be

enabled as an interrupt source at one time.

Crystal oscillator

Table 5. Crystal oscillator specifications

Oscillator type

AT-cut crystal

Frequency

16 MHz

Frequency stability

±100 ppm

Environmental

Table 6. Environmental specifications

Operating temperature range

0 to 70 °C

Storage temperature range

-40 to 70 °C

Humidity

0 to 95% non-condensing

Mechanical

Table 7. Mechanical specifications

Card dimensions

PCI short card: 136.0 mm (L) x 100.6 mm (W) x11.00 mm (H)

1 2 ... 14 15 16 17 18 19 20 21 22 23

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